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Finding the Fourth Proportional to 95,970.80, 143,956.20 and 88,972.40

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Solution

The fourth proportional to 95,970.80, 143,956.20 and 88,972.40 is: 133,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,970.80 : 143,956.20 = 88,972.40 : x
  2. Step 2: Convert to fraction form
    95,970.80/143,956.20 = 88,972.40/x
  3. Step 3: Cross multiply
    95,970.80x = 143,956.20 × 88,972.40
  4. Step 4: Simplify right side
    95,970.80x = 12,808,128,608.88
  5. Step 5: Solve for x
    x = 12,808,128,608.88/95,970.80
  6. Step 6: Final answer
    x = 133,458.60

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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.