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Finding the Fourth Proportional to 563,632.77, 845,441.90 and 137,169.30

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Solution

The fourth proportional to 563,632.77, 845,441.90 and 137,169.30 is: 205,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,632.77 : 845,441.90 = 137,169.30 : x
  2. Step 2: Convert to fraction form
    563,632.77/845,441.90 = 137,169.30/x
  3. Step 3: Cross multiply
    563,632.77x = 845,441.90 × 137,169.30
  4. Step 4: Simplify right side
    563,632.77x = 115,968,673,613.67
  5. Step 5: Solve for x
    x = 115,968,673,613.67/563,632.77
  6. Step 6: Final answer
    x = 205,752.18

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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.