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Finding the Fourth Proportional to 291,207.71, 401,800.15 and 163,836.83

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Solution

The fourth proportional to 291,207.71, 401,800.15 and 163,836.83 is: 226,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,207.71 : 401,800.15 = 163,836.83 : x
  2. Step 2: Convert to fraction form
    291,207.71/401,800.15 = 163,836.83/x
  3. Step 3: Cross multiply
    291,207.71x = 401,800.15 × 163,836.83
  4. Step 4: Simplify right side
    291,207.71x = 65,829,662,869.52
  5. Step 5: Solve for x
    x = 65,829,662,869.52/291,207.71
  6. Step 6: Final answer
    x = 226,057.42

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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.