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Finding the Fourth Proportional to 551,242.80, 826,864.20 and 177,303.60

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Solution

The fourth proportional to 551,242.80, 826,864.20 and 177,303.60 is: 265,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,242.80 : 826,864.20 = 177,303.60 : x
  2. Step 2: Convert to fraction form
    551,242.80/826,864.20 = 177,303.60/x
  3. Step 3: Cross multiply
    551,242.80x = 826,864.20 × 177,303.60
  4. Step 4: Simplify right side
    551,242.80x = 146,605,999,371.12
  5. Step 5: Solve for x
    x = 146,605,999,371.12/551,242.80
  6. Step 6: Final answer
    x = 265,955.40

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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.