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Finding the Fourth Proportional to 546,396.66, 819,521.16 and 147,061.40

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Solution

The fourth proportional to 546,396.66, 819,521.16 and 147,061.40 is: 220,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,396.66 : 819,521.16 = 147,061.40 : x
  2. Step 2: Convert to fraction form
    546,396.66/819,521.16 = 147,061.40/x
  3. Step 3: Cross multiply
    546,396.66x = 819,521.16 × 147,061.40
  4. Step 4: Simplify right side
    546,396.66x = 120,519,925,021.62
  5. Step 5: Solve for x
    x = 120,519,925,021.62/546,396.66
  6. Step 6: Final answer
    x = 220,572.22

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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.