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Finding the Fourth Proportional to 103,346.70, 155,020.05 and 96,348.30

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Solution

The fourth proportional to 103,346.70, 155,020.05 and 96,348.30 is: 144,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,346.70 : 155,020.05 = 96,348.30 : x
  2. Step 2: Convert to fraction form
    103,346.70/155,020.05 = 96,348.30/x
  3. Step 3: Cross multiply
    103,346.70x = 155,020.05 × 96,348.30
  4. Step 4: Simplify right side
    103,346.70x = 14,935,918,283.42
  5. Step 5: Solve for x
    x = 14,935,918,283.42/103,346.70
  6. Step 6: Final answer
    x = 144,522.45

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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.