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Finding the Fourth Proportional to 101,678.68, 152,480.58 and 35,101.72

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Solution

The fourth proportional to 101,678.68, 152,480.58 and 35,101.72 is: 52,639.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,678.68 : 152,480.58 = 35,101.72 : x
  2. Step 2: Convert to fraction form
    101,678.68/152,480.58 = 35,101.72/x
  3. Step 3: Cross multiply
    101,678.68x = 152,480.58 × 35,101.72
  4. Step 4: Simplify right side
    101,678.68x = 5,352,330,624.60
  5. Step 5: Solve for x
    x = 5,352,330,624.60/101,678.68
  6. Step 6: Final answer
    x = 52,639.65

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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.