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Finding the Fourth Proportional to 83,357.86, 115,033.84 and 45,117.40

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Solution

The fourth proportional to 83,357.86, 115,033.84 and 45,117.40 is: 62,262.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,357.86 : 115,033.84 = 45,117.40 : x
  2. Step 2: Convert to fraction form
    83,357.86/115,033.84 = 45,117.40/x
  3. Step 3: Cross multiply
    83,357.86x = 115,033.84 × 45,117.40
  4. Step 4: Simplify right side
    83,357.86x = 5,190,027,731.92
  5. Step 5: Solve for x
    x = 5,190,027,731.92/83,357.86
  6. Step 6: Final answer
    x = 62,262.01

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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.