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Finding the Fourth Proportional to 187,000.65, 280,677.15 and 98,317.80

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Solution

The fourth proportional to 187,000.65, 280,677.15 and 98,317.80 is: 147,569.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,000.65 : 280,677.15 = 98,317.80 : x
  2. Step 2: Convert to fraction form
    187,000.65/280,677.15 = 98,317.80/x
  3. Step 3: Cross multiply
    187,000.65x = 280,677.15 × 98,317.80
  4. Step 4: Simplify right side
    187,000.65x = 27,595,559,898.27
  5. Step 5: Solve for x
    x = 27,595,559,898.27/187,000.65
  6. Step 6: Final answer
    x = 147,569.33

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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.