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Finding the Fourth Proportional to 88,710.90, 133,066.35 and 80,546.10

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Solution

The fourth proportional to 88,710.90, 133,066.35 and 80,546.10 is: 120,819.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,710.90 : 133,066.35 = 80,546.10 : x
  2. Step 2: Convert to fraction form
    88,710.90/133,066.35 = 80,546.10/x
  3. Step 3: Cross multiply
    88,710.90x = 133,066.35 × 80,546.10
  4. Step 4: Simplify right side
    88,710.90x = 10,717,975,533.74
  5. Step 5: Solve for x
    x = 10,717,975,533.74/88,710.90
  6. Step 6: Final answer
    x = 120,819.15

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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.