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Finding the Fourth Proportional to 115,955.58, 160,340.81 and 92,040.74

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Solution

The fourth proportional to 115,955.58, 160,340.81 and 92,040.74 is: 127,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,955.58 : 160,340.81 = 92,040.74 : x
  2. Step 2: Convert to fraction form
    115,955.58/160,340.81 = 92,040.74/x
  3. Step 3: Cross multiply
    115,955.58x = 160,340.81 × 92,040.74
  4. Step 4: Simplify right side
    115,955.58x = 14,757,885,542.69
  5. Step 5: Solve for x
    x = 14,757,885,542.69/115,955.58
  6. Step 6: Final answer
    x = 127,271.89

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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.