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Finding the Fourth Proportional to 115,902.70, 173,854.05 and 100,696.30

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Solution

The fourth proportional to 115,902.70, 173,854.05 and 100,696.30 is: 151,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,902.70 : 173,854.05 = 100,696.30 : x
  2. Step 2: Convert to fraction form
    115,902.70/173,854.05 = 100,696.30/x
  3. Step 3: Cross multiply
    115,902.70x = 173,854.05 × 100,696.30
  4. Step 4: Simplify right side
    115,902.70x = 17,506,459,575.02
  5. Step 5: Solve for x
    x = 17,506,459,575.02/115,902.70
  6. Step 6: Final answer
    x = 151,044.45

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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.