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Finding the Fourth Proportional to 116,633.48, 160,947.60 and 65,648.40

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Solution

The fourth proportional to 116,633.48, 160,947.60 and 65,648.40 is: 90,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,633.48 : 160,947.60 = 65,648.40 : x
  2. Step 2: Convert to fraction form
    116,633.48/160,947.60 = 65,648.40/x
  3. Step 3: Cross multiply
    116,633.48x = 160,947.60 × 65,648.40
  4. Step 4: Simplify right side
    116,633.48x = 10,565,952,423.84
  5. Step 5: Solve for x
    x = 10,565,952,423.84/116,633.48
  6. Step 6: Final answer
    x = 90,591.08

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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.