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Finding the Fourth Proportional to 77,161.59, 115,741.56 and 58,555.89

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Solution

The fourth proportional to 77,161.59, 115,741.56 and 58,555.89 is: 87,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,161.59 : 115,741.56 = 58,555.89 : x
  2. Step 2: Convert to fraction form
    77,161.59/115,741.56 = 58,555.89/x
  3. Step 3: Cross multiply
    77,161.59x = 115,741.56 × 58,555.89
  4. Step 4: Simplify right side
    77,161.59x = 6,777,350,055.79
  5. Step 5: Solve for x
    x = 6,777,350,055.79/77,161.59
  6. Step 6: Final answer
    x = 87,833.21

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1.5x scale

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.