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Finding the Fourth Proportional to 448,363.40, 672,545.10 and 167,865.80

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Solution

The fourth proportional to 448,363.40, 672,545.10 and 167,865.80 is: 251,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,363.40 : 672,545.10 = 167,865.80 : x
  2. Step 2: Convert to fraction form
    448,363.40/672,545.10 = 167,865.80/x
  3. Step 3: Cross multiply
    448,363.40x = 672,545.10 × 167,865.80
  4. Step 4: Simplify right side
    448,363.40x = 112,897,321,247.58
  5. Step 5: Solve for x
    x = 112,897,321,247.58/448,363.40
  6. Step 6: Final answer
    x = 251,798.70

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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.