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Finding the Fourth Proportional to 125,653.16, 188,543.52 and 83,562.52

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Solution

The fourth proportional to 125,653.16, 188,543.52 and 83,562.52 is: 125,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,653.16 : 188,543.52 = 83,562.52 : x
  2. Step 2: Convert to fraction form
    125,653.16/188,543.52 = 83,562.52/x
  3. Step 3: Cross multiply
    125,653.16x = 188,543.52 × 83,562.52
  4. Step 4: Simplify right side
    125,653.16x = 15,755,171,660.87
  5. Step 5: Solve for x
    x = 15,755,171,660.87/125,653.16
  6. Step 6: Final answer
    x = 125,386.20

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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.