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Finding the Fourth Proportional to 292,098.60, 436,034.88 and 256,669.20

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Solution

The fourth proportional to 292,098.60, 436,034.88 and 256,669.20 is: 383,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,098.60 : 436,034.88 = 256,669.20 : x
  2. Step 2: Convert to fraction form
    292,098.60/436,034.88 = 256,669.20/x
  3. Step 3: Cross multiply
    292,098.60x = 436,034.88 × 256,669.20
  4. Step 4: Simplify right side
    292,098.60x = 111,916,723,821.70
  5. Step 5: Solve for x
    x = 111,916,723,821.70/292,098.60
  6. Step 6: Final answer
    x = 383,147.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.