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Finding the Fourth Proportional to 79,285.17, 118,947.59 and 55,957.17

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Solution

The fourth proportional to 79,285.17, 118,947.59 and 55,957.17 is: 83,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285.17 : 118,947.59 = 55,957.17 : x
  2. Step 2: Convert to fraction form
    79,285.17/118,947.59 = 55,957.17/x
  3. Step 3: Cross multiply
    79,285.17x = 118,947.59 × 55,957.17
  4. Step 4: Simplify right side
    79,285.17x = 6,655,970,514.72
  5. Step 5: Solve for x
    x = 6,655,970,514.72/79,285.17
  6. Step 6: Final answer
    x = 83,949.75

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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.