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Finding the Fourth Proportional to 141,984.60, 212,750.10 and 75,337.80

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Solution

The fourth proportional to 141,984.60, 212,750.10 and 75,337.80 is: 112,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,984.60 : 212,750.10 = 75,337.80 : x
  2. Step 2: Convert to fraction form
    141,984.60/212,750.10 = 75,337.80/x
  3. Step 3: Cross multiply
    141,984.60x = 212,750.10 × 75,337.80
  4. Step 4: Simplify right side
    141,984.60x = 16,028,124,483.78
  5. Step 5: Solve for x
    x = 16,028,124,483.78/141,984.60
  6. Step 6: Final answer
    x = 112,886.36

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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.