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Finding the Fourth Proportional to 316,282.20, 474,423.30 and 105,898.20

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Solution

The fourth proportional to 316,282.20, 474,423.30 and 105,898.20 is: 158,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,282.20 : 474,423.30 = 105,898.20 : x
  2. Step 2: Convert to fraction form
    316,282.20/474,423.30 = 105,898.20/x
  3. Step 3: Cross multiply
    316,282.20x = 474,423.30 × 105,898.20
  4. Step 4: Simplify right side
    316,282.20x = 50,240,573,508.06
  5. Step 5: Solve for x
    x = 50,240,573,508.06/316,282.20
  6. Step 6: Final answer
    x = 158,847.30

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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.