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Finding the Fourth Proportional to 104,700.39, 144,489.25 and 59,369.61

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Solution

The fourth proportional to 104,700.39, 144,489.25 and 59,369.61 is: 81,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,700.39 : 144,489.25 = 59,369.61 : x
  2. Step 2: Convert to fraction form
    104,700.39/144,489.25 = 59,369.61/x
  3. Step 3: Cross multiply
    104,700.39x = 144,489.25 × 59,369.61
  4. Step 4: Simplify right side
    104,700.39x = 8,578,270,421.69
  5. Step 5: Solve for x
    x = 8,578,270,421.69/104,700.39
  6. Step 6: Final answer
    x = 81,931.60

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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.