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Finding the Fourth Proportional to 152,462.52, 228,693.78 and 69,380.28

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Solution

The fourth proportional to 152,462.52, 228,693.78 and 69,380.28 is: 104,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,462.52 : 228,693.78 = 69,380.28 : x
  2. Step 2: Convert to fraction form
    152,462.52/228,693.78 = 69,380.28/x
  3. Step 3: Cross multiply
    152,462.52x = 228,693.78 × 69,380.28
  4. Step 4: Simplify right side
    152,462.52x = 15,866,838,490.66
  5. Step 5: Solve for x
    x = 15,866,838,490.66/152,462.52
  6. Step 6: Final answer
    x = 104,070.42

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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.