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Finding the Fourth Proportional to 157,800.28, 236,702.52 and 52,619.30

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Solution

The fourth proportional to 157,800.28, 236,702.52 and 52,619.30 is: 78,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,800.28 : 236,702.52 = 52,619.30 : x
  2. Step 2: Convert to fraction form
    157,800.28/236,702.52 = 52,619.30/x
  3. Step 3: Cross multiply
    157,800.28x = 236,702.52 × 52,619.30
  4. Step 4: Simplify right side
    157,800.28x = 12,455,120,910.64
  5. Step 5: Solve for x
    x = 12,455,120,910.64/157,800.28
  6. Step 6: Final answer
    x = 78,929.65

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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.