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Finding the Fourth Proportional to 356,946.95, 535,079.12 and 132,247.08

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Solution

The fourth proportional to 356,946.95, 535,079.12 and 132,247.08 is: 198,244.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,946.95 : 535,079.12 = 132,247.08 : x
  2. Step 2: Convert to fraction form
    356,946.95/535,079.12 = 132,247.08/x
  3. Step 3: Cross multiply
    356,946.95x = 535,079.12 × 132,247.08
  4. Step 4: Simplify right side
    356,946.95x = 70,762,650,527.73
  5. Step 5: Solve for x
    x = 70,762,650,527.73/356,946.95
  6. Step 6: Final answer
    x = 198,244.16

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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.