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Finding the Fourth Proportional to 369,421.16, 554,230.42 and 132,765.89

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Solution

The fourth proportional to 369,421.16, 554,230.42 and 132,765.89 is: 199,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,421.16 : 554,230.42 = 132,765.89 : x
  2. Step 2: Convert to fraction form
    369,421.16/554,230.42 = 132,765.89/x
  3. Step 3: Cross multiply
    369,421.16x = 554,230.42 × 132,765.89
  4. Step 4: Simplify right side
    369,421.16x = 73,582,891,873.31
  5. Step 5: Solve for x
    x = 73,582,891,873.31/369,421.16
  6. Step 6: Final answer
    x = 199,184.29

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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.