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Finding the Fourth Proportional to 245,938.52, 368,959.62 and 79,713.56

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Solution

The fourth proportional to 245,938.52, 368,959.62 and 79,713.56 is: 119,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,938.52 : 368,959.62 = 79,713.56 : x
  2. Step 2: Convert to fraction form
    245,938.52/368,959.62 = 79,713.56/x
  3. Step 3: Cross multiply
    245,938.52x = 368,959.62 × 79,713.56
  4. Step 4: Simplify right side
    245,938.52x = 29,411,086,027.77
  5. Step 5: Solve for x
    x = 29,411,086,027.77/245,938.52
  6. Step 6: Final answer
    x = 119,587.15

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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.