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Finding the Fourth Proportional to 100,678.70, 150,881.96 and 44,509.25

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Solution

The fourth proportional to 100,678.70, 150,881.96 and 44,509.25 is: 66,703.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,678.70 : 150,881.96 = 44,509.25 : x
  2. Step 2: Convert to fraction form
    100,678.70/150,881.96 = 44,509.25/x
  3. Step 3: Cross multiply
    100,678.70x = 150,881.96 × 44,509.25
  4. Step 4: Simplify right side
    100,678.70x = 6,715,641,901.17
  5. Step 5: Solve for x
    x = 6,715,641,901.17/100,678.70
  6. Step 6: Final answer
    x = 66,703.70

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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.