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Finding the Fourth Proportional to 100,677.53, 150,687.59 and 74,016.47

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Solution

The fourth proportional to 100,677.53, 150,687.59 and 74,016.47 is: 110,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,677.53 : 150,687.59 = 74,016.47 : x
  2. Step 2: Convert to fraction form
    100,677.53/150,687.59 = 74,016.47/x
  3. Step 3: Cross multiply
    100,677.53x = 150,687.59 × 74,016.47
  4. Step 4: Simplify right side
    100,677.53x = 11,153,363,491.24
  5. Step 5: Solve for x
    x = 11,153,363,491.24/100,677.53
  6. Step 6: Final answer
    x = 110,783.04

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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.