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Finding the Fourth Proportional to 136,167.59, 187,908.57 and 75,736.93

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Solution

The fourth proportional to 136,167.59, 187,908.57 and 75,736.93 is: 104,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,167.59 : 187,908.57 = 75,736.93 : x
  2. Step 2: Convert to fraction form
    136,167.59/187,908.57 = 75,736.93/x
  3. Step 3: Cross multiply
    136,167.59x = 187,908.57 × 75,736.93
  4. Step 4: Simplify right side
    136,167.59x = 14,231,618,212.49
  5. Step 5: Solve for x
    x = 14,231,618,212.49/136,167.59
  6. Step 6: Final answer
    x = 104,515.46

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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.