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Finding the Fourth Proportional to 134,609.55, 185,631.65 and 88,586.87

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Solution

The fourth proportional to 134,609.55, 185,631.65 and 88,586.87 is: 122,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,609.55 : 185,631.65 = 88,586.87 : x
  2. Step 2: Convert to fraction form
    134,609.55/185,631.65 = 88,586.87/x
  3. Step 3: Cross multiply
    134,609.55x = 185,631.65 × 88,586.87
  4. Step 4: Simplify right side
    134,609.55x = 16,444,525,807.54
  5. Step 5: Solve for x
    x = 16,444,525,807.54/134,609.55
  6. Step 6: Final answer
    x = 122,164.63

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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.