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Finding the Fourth Proportional to 547,089.66, 820,675.98 and 147,724.62

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Solution

The fourth proportional to 547,089.66, 820,675.98 and 147,724.62 is: 221,598.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,089.66 : 820,675.98 = 147,724.62 : x
  2. Step 2: Convert to fraction form
    547,089.66/820,675.98 = 147,724.62/x
  3. Step 3: Cross multiply
    547,089.66x = 820,675.98 × 147,724.62
  4. Step 4: Simplify right side
    547,089.66x = 121,234,047,288.63
  5. Step 5: Solve for x
    x = 121,234,047,288.63/547,089.66
  6. Step 6: Final answer
    x = 221,598.13

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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.