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Finding the Fourth Proportional to 144,626.32, 216,938.22 and 39,445.12

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Solution

The fourth proportional to 144,626.32, 216,938.22 and 39,445.12 is: 59,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,626.32 : 216,938.22 = 39,445.12 : x
  2. Step 2: Convert to fraction form
    144,626.32/216,938.22 = 39,445.12/x
  3. Step 3: Cross multiply
    144,626.32x = 216,938.22 × 39,445.12
  4. Step 4: Simplify right side
    144,626.32x = 8,557,154,120.49
  5. Step 5: Solve for x
    x = 8,557,154,120.49/144,626.32
  6. Step 6: Final answer
    x = 59,167.34

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1.5x scale

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.