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Finding the Fourth Proportional to 147,200.80, 220,801.20 and 94,712.80

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Solution

The fourth proportional to 147,200.80, 220,801.20 and 94,712.80 is: 142,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,200.80 : 220,801.20 = 94,712.80 : x
  2. Step 2: Convert to fraction form
    147,200.80/220,801.20 = 94,712.80/x
  3. Step 3: Cross multiply
    147,200.80x = 220,801.20 × 94,712.80
  4. Step 4: Simplify right side
    147,200.80x = 20,912,699,895.36
  5. Step 5: Solve for x
    x = 20,912,699,895.36/147,200.80
  6. Step 6: Final answer
    x = 142,069.20

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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.