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Finding the Fourth Proportional to 144,479.71, 216,522.72 and 69,594.40

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Solution

The fourth proportional to 144,479.71, 216,522.72 and 69,594.40 is: 104,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,479.71 : 216,522.72 = 69,594.40 : x
  2. Step 2: Convert to fraction form
    144,479.71/216,522.72 = 69,594.40/x
  3. Step 3: Cross multiply
    144,479.71x = 216,522.72 × 69,594.40
  4. Step 4: Simplify right side
    144,479.71x = 15,068,768,784.77
  5. Step 5: Solve for x
    x = 15,068,768,784.77/144,479.71
  6. Step 6: Final answer
    x = 104,296.78

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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.