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Finding the Fourth Proportional to 105,042.35, 157,489.71 and 38,473.83

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Solution

The fourth proportional to 105,042.35, 157,489.71 and 38,473.83 is: 57,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,042.35 : 157,489.71 = 38,473.83 : x
  2. Step 2: Convert to fraction form
    105,042.35/157,489.71 = 38,473.83/x
  3. Step 3: Cross multiply
    105,042.35x = 157,489.71 × 38,473.83
  4. Step 4: Simplify right side
    105,042.35x = 6,059,232,329.29
  5. Step 5: Solve for x
    x = 6,059,232,329.29/105,042.35
  6. Step 6: Final answer
    x = 57,683.71

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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.