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Finding the Fourth Proportional to 88,875.70, 133,097.55 and 47,230.90

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Solution

The fourth proportional to 88,875.70, 133,097.55 and 47,230.90 is: 70,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,875.70 : 133,097.55 = 47,230.90 : x
  2. Step 2: Convert to fraction form
    88,875.70/133,097.55 = 47,230.90/x
  3. Step 3: Cross multiply
    88,875.70x = 133,097.55 × 47,230.90
  4. Step 4: Simplify right side
    88,875.70x = 6,286,317,074.30
  5. Step 5: Solve for x
    x = 6,286,317,074.30/88,875.70
  6. Step 6: Final answer
    x = 70,731.56

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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.