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Finding the Fourth Proportional to 482,803.40, 724,205.10 and 127,853.30

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Solution

The fourth proportional to 482,803.40, 724,205.10 and 127,853.30 is: 191,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,803.40 : 724,205.10 = 127,853.30 : x
  2. Step 2: Convert to fraction form
    482,803.40/724,205.10 = 127,853.30/x
  3. Step 3: Cross multiply
    482,803.40x = 724,205.10 × 127,853.30
  4. Step 4: Simplify right side
    482,803.40x = 92,592,011,911.83
  5. Step 5: Solve for x
    x = 92,592,011,911.83/482,803.40
  6. Step 6: Final answer
    x = 191,779.95

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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.