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Finding the Fourth Proportional to 100,952.76, 151,429.14 and 63,939

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Solution

The fourth proportional to 100,952.76, 151,429.14 and 63,939 is: 95,908.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,952.76 : 151,429.14 = 63,939 : x
  2. Step 2: Convert to fraction form
    100,952.76/151,429.14 = 63,939/x
  3. Step 3: Cross multiply
    100,952.76x = 151,429.14 × 63,939
  4. Step 4: Simplify right side
    100,952.76x = 9,682,227,782.46
  5. Step 5: Solve for x
    x = 9,682,227,782.46/100,952.76
  6. Step 6: Final answer
    x = 95,908.50

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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.