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Finding the Fourth Proportional to 144,712.60, 217,068.90 and 92,159.80

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Solution

The fourth proportional to 144,712.60, 217,068.90 and 92,159.80 is: 138,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,712.60 : 217,068.90 = 92,159.80 : x
  2. Step 2: Convert to fraction form
    144,712.60/217,068.90 = 92,159.80/x
  3. Step 3: Cross multiply
    144,712.60x = 217,068.90 × 92,159.80
  4. Step 4: Simplify right side
    144,712.60x = 20,005,026,410.22
  5. Step 5: Solve for x
    x = 20,005,026,410.22/144,712.60
  6. Step 6: Final answer
    x = 138,239.70

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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.