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Finding the Fourth Proportional to 503,053.86, 754,420.68 and 166,031.76

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Solution

The fourth proportional to 503,053.86, 754,420.68 and 166,031.76 is: 248,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,053.86 : 754,420.68 = 166,031.76 : x
  2. Step 2: Convert to fraction form
    503,053.86/754,420.68 = 166,031.76/x
  3. Step 3: Cross multiply
    503,053.86x = 754,420.68 × 166,031.76
  4. Step 4: Simplify right side
    503,053.86x = 125,257,793,280.80
  5. Step 5: Solve for x
    x = 125,257,793,280.80/503,053.86
  6. Step 6: Final answer
    x = 248,994.80

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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.