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Finding the Fourth Proportional to 268,931.70, 371,122.74 and 148,070.52

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Solution

The fourth proportional to 268,931.70, 371,122.74 and 148,070.52 is: 204,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,931.70 : 371,122.74 = 148,070.52 : x
  2. Step 2: Convert to fraction form
    268,931.70/371,122.74 = 148,070.52/x
  3. Step 3: Cross multiply
    268,931.70x = 371,122.74 × 148,070.52
  4. Step 4: Simplify right side
    268,931.70x = 54,952,337,095.62
  5. Step 5: Solve for x
    x = 54,952,337,095.62/268,931.70
  6. Step 6: Final answer
    x = 204,335.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.