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Finding the Fourth Proportional to 97,720.80, 146,799.90 and 94,002.90

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Solution

The fourth proportional to 97,720.80, 146,799.90 and 94,002.90 is: 141,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,720.80 : 146,799.90 = 94,002.90 : x
  2. Step 2: Convert to fraction form
    97,720.80/146,799.90 = 94,002.90/x
  3. Step 3: Cross multiply
    97,720.80x = 146,799.90 × 94,002.90
  4. Step 4: Simplify right side
    97,720.80x = 13,799,616,319.71
  5. Step 5: Solve for x
    x = 13,799,616,319.71/97,720.80
  6. Step 6: Final answer
    x = 141,214.73

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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.