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Finding the Fourth Proportional to 115,040.70, 172,458.45 and 44,903.70

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Solution

The fourth proportional to 115,040.70, 172,458.45 and 44,903.70 is: 67,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,040.70 : 172,458.45 = 44,903.70 : x
  2. Step 2: Convert to fraction form
    115,040.70/172,458.45 = 44,903.70/x
  3. Step 3: Cross multiply
    115,040.70x = 172,458.45 × 44,903.70
  4. Step 4: Simplify right side
    115,040.70x = 7,744,022,501.27
  5. Step 5: Solve for x
    x = 7,744,022,501.27/115,040.70
  6. Step 6: Final answer
    x = 67,315.50

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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.