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Finding the Fourth Proportional to 103,066.80, 154,697.40 and 88,292.40

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Solution

The fourth proportional to 103,066.80, 154,697.40 and 88,292.40 is: 132,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,066.80 : 154,697.40 = 88,292.40 : x
  2. Step 2: Convert to fraction form
    103,066.80/154,697.40 = 88,292.40/x
  3. Step 3: Cross multiply
    103,066.80x = 154,697.40 × 88,292.40
  4. Step 4: Simplify right side
    103,066.80x = 13,658,604,719.76
  5. Step 5: Solve for x
    x = 13,658,604,719.76/103,066.80
  6. Step 6: Final answer
    x = 132,521.87

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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.