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Finding the Fourth Proportional to 124,654.50, 171,935.91 and 84,350.52

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Solution

The fourth proportional to 124,654.50, 171,935.91 and 84,350.52 is: 116,344.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654.50 : 171,935.91 = 84,350.52 : x
  2. Step 2: Convert to fraction form
    124,654.50/171,935.91 = 84,350.52/x
  3. Step 3: Cross multiply
    124,654.50x = 171,935.91 × 84,350.52
  4. Step 4: Simplify right side
    124,654.50x = 14,502,883,415.17
  5. Step 5: Solve for x
    x = 14,502,883,415.17/124,654.50
  6. Step 6: Final answer
    x = 116,344.64

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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.