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Finding the Fourth Proportional to 143,947,216.80, 215,920,825.20 and 143,947,216.80

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Solution

The fourth proportional to 143,947,216.80, 215,920,825.20 and 143,947,216.80 is: 215,920,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,947,216.80 : 215,920,825.20 = 143,947,216.80 : x
  2. Step 2: Convert to fraction form
    143,947,216.80/215,920,825.20 = 143,947,216.80/x
  3. Step 3: Cross multiply
    143,947,216.80x = 215,920,825.20 × 143,947,216.80
  4. Step 4: Simplify right side
    143,947,216.80x = 31,081,201,836,699,304
  5. Step 5: Solve for x
    x = 31,081,201,836,699,304/143,947,216.80
  6. Step 6: Final answer
    x = 215,920,825.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.