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Finding the Fourth Proportional to 134,483.76, 185,713.56 and 84,270.24

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Solution

The fourth proportional to 134,483.76, 185,713.56 and 84,270.24 is: 116,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,483.76 : 185,713.56 = 84,270.24 : x
  2. Step 2: Convert to fraction form
    134,483.76/185,713.56 = 84,270.24/x
  3. Step 3: Cross multiply
    134,483.76x = 185,713.56 × 84,270.24
  4. Step 4: Simplify right side
    134,483.76x = 15,650,126,272.45
  5. Step 5: Solve for x
    x = 15,650,126,272.45/134,483.76
  6. Step 6: Final answer
    x = 116,371.87

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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.