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Finding the Fourth Proportional to 124,124.49, 171,301.23 and 75,722.13

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Solution

The fourth proportional to 124,124.49, 171,301.23 and 75,722.13 is: 104,502.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,124.49 : 171,301.23 = 75,722.13 : x
  2. Step 2: Convert to fraction form
    124,124.49/171,301.23 = 75,722.13/x
  3. Step 3: Cross multiply
    124,124.49x = 171,301.23 × 75,722.13
  4. Step 4: Simplify right side
    124,124.49x = 12,971,294,007.22
  5. Step 5: Solve for x
    x = 12,971,294,007.22/124,124.49
  6. Step 6: Final answer
    x = 104,502.29

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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.