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Finding the Fourth Proportional to 119,830.40, 179,720.40 and 60,610.40

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Solution

The fourth proportional to 119,830.40, 179,720.40 and 60,610.40 is: 90,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,830.40 : 179,720.40 = 60,610.40 : x
  2. Step 2: Convert to fraction form
    119,830.40/179,720.40 = 60,610.40/x
  3. Step 3: Cross multiply
    119,830.40x = 179,720.40 × 60,610.40
  4. Step 4: Simplify right side
    119,830.40x = 10,892,925,332.16
  5. Step 5: Solve for x
    x = 10,892,925,332.16/119,830.40
  6. Step 6: Final answer
    x = 90,902.85

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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.