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Finding the Fourth Proportional to 363,121.20, 544,487.40 and 152,521.20

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Solution

The fourth proportional to 363,121.20, 544,487.40 and 152,521.20 is: 228,700.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,121.20 : 544,487.40 = 152,521.20 : x
  2. Step 2: Convert to fraction form
    363,121.20/544,487.40 = 152,521.20/x
  3. Step 3: Cross multiply
    363,121.20x = 544,487.40 × 152,521.20
  4. Step 4: Simplify right side
    363,121.20x = 83,045,871,632.88
  5. Step 5: Solve for x
    x = 83,045,871,632.88/363,121.20
  6. Step 6: Final answer
    x = 228,700.15

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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.