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Finding the Fourth Proportional to 103,411.55, 144,480.92 and 103,411.55

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Solution

The fourth proportional to 103,411.55, 144,480.92 and 103,411.55 is: 144,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,411.55 : 144,480.92 = 103,411.55 : x
  2. Step 2: Convert to fraction form
    103,411.55/144,480.92 = 103,411.55/x
  3. Step 3: Cross multiply
    103,411.55x = 144,480.92 × 103,411.55
  4. Step 4: Simplify right side
    103,411.55x = 14,940,995,882.63
  5. Step 5: Solve for x
    x = 14,940,995,882.63/103,411.55
  6. Step 6: Final answer
    x = 144,480.92

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.