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Finding the Fourth Proportional to 144,445.85, 216,695.91 and 65,565.62

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Solution

The fourth proportional to 144,445.85, 216,695.91 and 65,565.62 is: 98,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,445.85 : 216,695.91 = 65,565.62 : x
  2. Step 2: Convert to fraction form
    144,445.85/216,695.91 = 65,565.62/x
  3. Step 3: Cross multiply
    144,445.85x = 216,695.91 × 65,565.62
  4. Step 4: Simplify right side
    144,445.85x = 14,207,800,607.13
  5. Step 5: Solve for x
    x = 14,207,800,607.13/144,445.85
  6. Step 6: Final answer
    x = 98,360.74

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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.