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Finding the Fourth Proportional to 191,866.46, 287,882.58 and 103,016.20

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Solution

The fourth proportional to 191,866.46, 287,882.58 and 103,016.20 is: 154,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,866.46 : 287,882.58 = 103,016.20 : x
  2. Step 2: Convert to fraction form
    191,866.46/287,882.58 = 103,016.20/x
  3. Step 3: Cross multiply
    191,866.46x = 287,882.58 × 103,016.20
  4. Step 4: Simplify right side
    191,866.46x = 29,656,569,437.80
  5. Step 5: Solve for x
    x = 29,656,569,437.80/191,866.46
  6. Step 6: Final answer
    x = 154,568.80

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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.