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Finding the Fourth Proportional to 115,117.81, 172,357.81 and 58,836.71

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Solution

The fourth proportional to 115,117.81, 172,357.81 and 58,836.71 is: 88,092.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,117.81 : 172,357.81 = 58,836.71 : x
  2. Step 2: Convert to fraction form
    115,117.81/172,357.81 = 58,836.71/x
  3. Step 3: Cross multiply
    115,117.81x = 172,357.81 × 58,836.71
  4. Step 4: Simplify right side
    115,117.81x = 10,140,966,767.01
  5. Step 5: Solve for x
    x = 10,140,966,767.01/115,117.81
  6. Step 6: Final answer
    x = 88,092.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.