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Finding the Fourth Proportional to 120,897.84, 166,849.56 and 70,613.04

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Solution

The fourth proportional to 120,897.84, 166,849.56 and 70,613.04 is: 97,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,897.84 : 166,849.56 = 70,613.04 : x
  2. Step 2: Convert to fraction form
    120,897.84/166,849.56 = 70,613.04/x
  3. Step 3: Cross multiply
    120,897.84x = 166,849.56 × 70,613.04
  4. Step 4: Simplify right side
    120,897.84x = 11,781,754,654.26
  5. Step 5: Solve for x
    x = 11,781,754,654.26/120,897.84
  6. Step 6: Final answer
    x = 97,452.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.