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Finding the Fourth Proportional to 102,390.52, 153,562.74 and 36,726.52

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Solution

The fourth proportional to 102,390.52, 153,562.74 and 36,726.52 is: 55,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,390.52 : 153,562.74 = 36,726.52 : x
  2. Step 2: Convert to fraction form
    102,390.52/153,562.74 = 36,726.52/x
  3. Step 3: Cross multiply
    102,390.52x = 153,562.74 × 36,726.52
  4. Step 4: Simplify right side
    102,390.52x = 5,639,825,041.86
  5. Step 5: Solve for x
    x = 5,639,825,041.86/102,390.52
  6. Step 6: Final answer
    x = 55,081.52

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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.