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Finding the Fourth Proportional to 144,635.66, 216,947.14 and 39,454.28

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Solution

The fourth proportional to 144,635.66, 216,947.14 and 39,454.28 is: 59,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,635.66 : 216,947.14 = 39,454.28 : x
  2. Step 2: Convert to fraction form
    144,635.66/216,947.14 = 39,454.28/x
  3. Step 3: Cross multiply
    144,635.66x = 216,947.14 × 39,454.28
  4. Step 4: Simplify right side
    144,635.66x = 8,559,492,023.39
  5. Step 5: Solve for x
    x = 8,559,492,023.39/144,635.66
  6. Step 6: Final answer
    x = 59,179.68

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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.