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Finding the Fourth Proportional to 124,246.80, 171,341.88 and 83,502.96

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Solution

The fourth proportional to 124,246.80, 171,341.88 and 83,502.96 is: 115,154.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,246.80 : 171,341.88 = 83,502.96 : x
  2. Step 2: Convert to fraction form
    124,246.80/171,341.88 = 83,502.96/x
  3. Step 3: Cross multiply
    124,246.80x = 171,341.88 × 83,502.96
  4. Step 4: Simplify right side
    124,246.80x = 14,307,554,151.96
  5. Step 5: Solve for x
    x = 14,307,554,151.96/124,246.80
  6. Step 6: Final answer
    x = 115,154.31

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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.