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Finding the Fourth Proportional to 83,875.50, 115,749.81 and 46,149.75

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Solution

The fourth proportional to 83,875.50, 115,749.81 and 46,149.75 is: 63,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,875.50 : 115,749.81 = 46,149.75 : x
  2. Step 2: Convert to fraction form
    83,875.50/115,749.81 = 46,149.75/x
  3. Step 3: Cross multiply
    83,875.50x = 115,749.81 × 46,149.75
  4. Step 4: Simplify right side
    83,875.50x = 5,341,824,794.05
  5. Step 5: Solve for x
    x = 5,341,824,794.05/83,875.50
  6. Step 6: Final answer
    x = 63,687.55

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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.