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Finding the Fourth Proportional to 55,993,879.70, 83,990,819.55 and 15,604,363.70

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Solution

The fourth proportional to 55,993,879.70, 83,990,819.55 and 15,604,363.70 is: 23,406,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,993,879.70 : 83,990,819.55 = 15,604,363.70 : x
  2. Step 2: Convert to fraction form
    55,993,879.70/83,990,819.55 = 15,604,363.70/x
  3. Step 3: Cross multiply
    55,993,879.70x = 83,990,819.55 × 15,604,363.70
  4. Step 4: Simplify right side
    55,993,879.70x = 1,310,623,295,719,270.25
  5. Step 5: Solve for x
    x = 1,310,623,295,719,270.25/55,993,879.70
  6. Step 6: Final answer
    x = 23,406,545.55

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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.