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Finding the Fourth Proportional to 185,720.40, 278,476 and 59,330.96

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Solution

The fourth proportional to 185,720.40, 278,476 and 59,330.96 is: 88,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,720.40 : 278,476 = 59,330.96 : x
  2. Step 2: Convert to fraction form
    185,720.40/278,476 = 59,330.96/x
  3. Step 3: Cross multiply
    185,720.40x = 278,476 × 59,330.96
  4. Step 4: Simplify right side
    185,720.40x = 16,522,248,416.96
  5. Step 5: Solve for x
    x = 16,522,248,416.96/185,720.40
  6. Step 6: Final answer
    x = 88,963.02

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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.