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Finding the Fourth Proportional to 74,445.68, 102,726.42 and 42,612.68

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Solution

The fourth proportional to 74,445.68, 102,726.42 and 42,612.68 is: 58,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,445.68 : 102,726.42 = 42,612.68 : x
  2. Step 2: Convert to fraction form
    74,445.68/102,726.42 = 42,612.68/x
  3. Step 3: Cross multiply
    74,445.68x = 102,726.42 × 42,612.68
  4. Step 4: Simplify right side
    74,445.68x = 4,377,448,063.01
  5. Step 5: Solve for x
    x = 4,377,448,063.01/74,445.68
  6. Step 6: Final answer
    x = 58,800.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.