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Finding the Fourth Proportional to 124,502.88, 171,807.08 and 70,780.48

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Solution

The fourth proportional to 124,502.88, 171,807.08 and 70,780.48 is: 97,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,502.88 : 171,807.08 = 70,780.48 : x
  2. Step 2: Convert to fraction form
    124,502.88/171,807.08 = 70,780.48/x
  3. Step 3: Cross multiply
    124,502.88x = 171,807.08 × 70,780.48
  4. Step 4: Simplify right side
    124,502.88x = 12,160,587,589.80
  5. Step 5: Solve for x
    x = 12,160,587,589.80/124,502.88
  6. Step 6: Final answer
    x = 97,673.14

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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.