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Finding the Fourth Proportional to 443,867.04, 665,863.74 and 144,251.28

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Solution

The fourth proportional to 443,867.04, 665,863.74 and 144,251.28 is: 216,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,867.04 : 665,863.74 = 144,251.28 : x
  2. Step 2: Convert to fraction form
    443,867.04/665,863.74 = 144,251.28/x
  3. Step 3: Cross multiply
    443,867.04x = 665,863.74 × 144,251.28
  4. Step 4: Simplify right side
    443,867.04x = 96,051,696,800.59
  5. Step 5: Solve for x
    x = 96,051,696,800.59/443,867.04
  6. Step 6: Final answer
    x = 216,397.45

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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.