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Finding the Fourth Proportional to 158,411.60, 237,617.40 and 98,487.80

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Solution

The fourth proportional to 158,411.60, 237,617.40 and 98,487.80 is: 147,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,411.60 : 237,617.40 = 98,487.80 : x
  2. Step 2: Convert to fraction form
    158,411.60/237,617.40 = 98,487.80/x
  3. Step 3: Cross multiply
    158,411.60x = 237,617.40 × 98,487.80
  4. Step 4: Simplify right side
    158,411.60x = 23,402,414,967.72
  5. Step 5: Solve for x
    x = 23,402,414,967.72/158,411.60
  6. Step 6: Final answer
    x = 147,731.70

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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.