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Finding the Fourth Proportional to 144,448.60, 216,672.90 and 100,125.40

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Solution

The fourth proportional to 144,448.60, 216,672.90 and 100,125.40 is: 150,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,448.60 : 216,672.90 = 100,125.40 : x
  2. Step 2: Convert to fraction form
    144,448.60/216,672.90 = 100,125.40/x
  3. Step 3: Cross multiply
    144,448.60x = 216,672.90 × 100,125.40
  4. Step 4: Simplify right side
    144,448.60x = 21,694,460,781.66
  5. Step 5: Solve for x
    x = 21,694,460,781.66/144,448.60
  6. Step 6: Final answer
    x = 150,188.10

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1.5x scale

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.