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Finding the Fourth Proportional to 243,601.75, 336,177.87 and 136,176.31

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Solution

The fourth proportional to 243,601.75, 336,177.87 and 136,176.31 is: 187,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,601.75 : 336,177.87 = 136,176.31 : x
  2. Step 2: Convert to fraction form
    243,601.75/336,177.87 = 136,176.31/x
  3. Step 3: Cross multiply
    243,601.75x = 336,177.87 × 136,176.31
  4. Step 4: Simplify right side
    243,601.75x = 45,779,463,078.32
  5. Step 5: Solve for x
    x = 45,779,463,078.32/243,601.75
  6. Step 6: Final answer
    x = 187,927.48

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1.5x scale

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.