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Finding the Fourth Proportional to 207,894.08, 286,892.52 and 112,399.76

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Solution

The fourth proportional to 207,894.08, 286,892.52 and 112,399.76 is: 155,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,894.08 : 286,892.52 = 112,399.76 : x
  2. Step 2: Convert to fraction form
    207,894.08/286,892.52 = 112,399.76/x
  3. Step 3: Cross multiply
    207,894.08x = 286,892.52 × 112,399.76
  4. Step 4: Simplify right side
    207,894.08x = 32,246,650,393.80
  5. Step 5: Solve for x
    x = 32,246,650,393.80/207,894.08
  6. Step 6: Final answer
    x = 155,110.96

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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.