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Finding the Fourth Proportional to 315,058.64, 472,613.56 and 93,442

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Solution

The fourth proportional to 315,058.64, 472,613.56 and 93,442 is: 140,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,058.64 : 472,613.56 = 93,442 : x
  2. Step 2: Convert to fraction form
    315,058.64/472,613.56 = 93,442/x
  3. Step 3: Cross multiply
    315,058.64x = 472,613.56 × 93,442
  4. Step 4: Simplify right side
    315,058.64x = 44,161,956,273.52
  5. Step 5: Solve for x
    x = 44,161,956,273.52/315,058.64
  6. Step 6: Final answer
    x = 140,170.59

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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.