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Finding the Fourth Proportional to 72,294.71, 107,949.96 and 63,790.34

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Solution

The fourth proportional to 72,294.71, 107,949.96 and 63,790.34 is: 95,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,294.71 : 107,949.96 = 63,790.34 : x
  2. Step 2: Convert to fraction form
    72,294.71/107,949.96 = 63,790.34/x
  3. Step 3: Cross multiply
    72,294.71x = 107,949.96 × 63,790.34
  4. Step 4: Simplify right side
    72,294.71x = 6,886,164,111.64
  5. Step 5: Solve for x
    x = 6,886,164,111.64/72,294.71
  6. Step 6: Final answer
    x = 95,251.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.