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Finding the Fourth Proportional to 122,445.66, 183,599.52 and 42,446.10

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Solution

The fourth proportional to 122,445.66, 183,599.52 and 42,446.10 is: 63,645.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,445.66 : 183,599.52 = 42,446.10 : x
  2. Step 2: Convert to fraction form
    122,445.66/183,599.52 = 42,446.10/x
  3. Step 3: Cross multiply
    122,445.66x = 183,599.52 × 42,446.10
  4. Step 4: Simplify right side
    122,445.66x = 7,793,083,585.87
  5. Step 5: Solve for x
    x = 7,793,083,585.87/122,445.66
  6. Step 6: Final answer
    x = 63,645.24

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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.