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Finding the Fourth Proportional to 207,905.30, 286,843.83 and 127,248.74

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Solution

The fourth proportional to 207,905.30, 286,843.83 and 127,248.74 is: 175,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,905.30 : 286,843.83 = 127,248.74 : x
  2. Step 2: Convert to fraction form
    207,905.30/286,843.83 = 127,248.74/x
  3. Step 3: Cross multiply
    207,905.30x = 286,843.83 × 127,248.74
  4. Step 4: Simplify right side
    207,905.30x = 36,500,516,184.20
  5. Step 5: Solve for x
    x = 36,500,516,184.20/207,905.30
  6. Step 6: Final answer
    x = 175,563.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.