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Finding the Fourth Proportional to 79,317.35, 109,455.97 and 45,323.68

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Solution

The fourth proportional to 79,317.35, 109,455.97 and 45,323.68 is: 62,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,317.35 : 109,455.97 = 45,323.68 : x
  2. Step 2: Convert to fraction form
    79,317.35/109,455.97 = 45,323.68/x
  3. Step 3: Cross multiply
    79,317.35x = 109,455.97 × 45,323.68
  4. Step 4: Simplify right side
    79,317.35x = 4,960,947,358.37
  5. Step 5: Solve for x
    x = 4,960,947,358.37/79,317.35
  6. Step 6: Final answer
    x = 62,545.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.