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Finding the Fourth Proportional to 155,243.88, 232,956.18 and 65,280.10

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Solution

The fourth proportional to 155,243.88, 232,956.18 and 65,280.10 is: 97,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,243.88 : 232,956.18 = 65,280.10 : x
  2. Step 2: Convert to fraction form
    155,243.88/232,956.18 = 65,280.10/x
  3. Step 3: Cross multiply
    155,243.88x = 232,956.18 × 65,280.10
  4. Step 4: Simplify right side
    155,243.88x = 15,207,402,726.02
  5. Step 5: Solve for x
    x = 15,207,402,726.02/155,243.88
  6. Step 6: Final answer
    x = 97,958.15

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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.