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Finding the Fourth Proportional to 144,643.60, 216,945.40 and 44,872.40

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Solution

The fourth proportional to 144,643.60, 216,945.40 and 44,872.40 is: 67,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,643.60 : 216,945.40 = 44,872.40 : x
  2. Step 2: Convert to fraction form
    144,643.60/216,945.40 = 44,872.40/x
  3. Step 3: Cross multiply
    144,643.60x = 216,945.40 × 44,872.40
  4. Step 4: Simplify right side
    144,643.60x = 9,734,860,766.96
  5. Step 5: Solve for x
    x = 9,734,860,766.96/144,643.60
  6. Step 6: Final answer
    x = 67,302.40

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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.