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Finding the Fourth Proportional to 144,559.72, 216,747.06 and 69,530.46

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Solution

The fourth proportional to 144,559.72, 216,747.06 and 69,530.46 is: 104,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,559.72 : 216,747.06 = 69,530.46 : x
  2. Step 2: Convert to fraction form
    144,559.72/216,747.06 = 69,530.46/x
  3. Step 3: Cross multiply
    144,559.72x = 216,747.06 × 69,530.46
  4. Step 4: Simplify right side
    144,559.72x = 15,070,522,785.45
  5. Step 5: Solve for x
    x = 15,070,522,785.45/144,559.72
  6. Step 6: Final answer
    x = 104,251.19

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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.