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Finding the Fourth Proportional to 551,417.10, 827,125.65 and 177,440.10

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Solution

The fourth proportional to 551,417.10, 827,125.65 and 177,440.10 is: 266,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,417.10 : 827,125.65 = 177,440.10 : x
  2. Step 2: Convert to fraction form
    551,417.10/827,125.65 = 177,440.10/x
  3. Step 3: Cross multiply
    551,417.10x = 827,125.65 × 177,440.10
  4. Step 4: Simplify right side
    551,417.10x = 146,765,258,048.57
  5. Step 5: Solve for x
    x = 146,765,258,048.57/551,417.10
  6. Step 6: Final answer
    x = 266,160.15

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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.