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Finding the Fourth Proportional to 547,803.48, 821,793.51 and 168,724.08

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Solution

The fourth proportional to 547,803.48, 821,793.51 and 168,724.08 is: 253,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,803.48 : 821,793.51 = 168,724.08 : x
  2. Step 2: Convert to fraction form
    547,803.48/821,793.51 = 168,724.08/x
  3. Step 3: Cross multiply
    547,803.48x = 821,793.51 × 168,724.08
  4. Step 4: Simplify right side
    547,803.48x = 138,656,356,373.73
  5. Step 5: Solve for x
    x = 138,656,356,373.73/547,803.48
  6. Step 6: Final answer
    x = 253,113.32

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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.