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Finding the Fourth Proportional to 95,897.64, 143,921.79 and 66,522.18

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Solution

The fourth proportional to 95,897.64, 143,921.79 and 66,522.18 is: 99,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,897.64 : 143,921.79 = 66,522.18 : x
  2. Step 2: Convert to fraction form
    95,897.64/143,921.79 = 66,522.18/x
  3. Step 3: Cross multiply
    95,897.64x = 143,921.79 × 66,522.18
  4. Step 4: Simplify right side
    95,897.64x = 9,573,991,220.30
  5. Step 5: Solve for x
    x = 9,573,991,220.30/95,897.64
  6. Step 6: Final answer
    x = 99,835.52

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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.