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Finding the Fourth Proportional to 152,614.85, 210,621.80 and 88,951.28

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Solution

The fourth proportional to 152,614.85, 210,621.80 and 88,951.28 is: 122,760.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,614.85 : 210,621.80 = 88,951.28 : x
  2. Step 2: Convert to fraction form
    152,614.85/210,621.80 = 88,951.28/x
  3. Step 3: Cross multiply
    152,614.85x = 210,621.80 × 88,951.28
  4. Step 4: Simplify right side
    152,614.85x = 18,735,077,875.17
  5. Step 5: Solve for x
    x = 18,735,077,875.17/152,614.85
  6. Step 6: Final answer
    x = 122,760.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.