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Finding the Fourth Proportional to 86,957.60, 119,945.73 and 59,720.54

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Solution

The fourth proportional to 86,957.60, 119,945.73 and 59,720.54 is: 82,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,957.60 : 119,945.73 = 59,720.54 : x
  2. Step 2: Convert to fraction form
    86,957.60/119,945.73 = 59,720.54/x
  3. Step 3: Cross multiply
    86,957.60x = 119,945.73 × 59,720.54
  4. Step 4: Simplify right side
    86,957.60x = 7,163,223,766.29
  5. Step 5: Solve for x
    x = 7,163,223,766.29/86,957.60
  6. Step 6: Final answer
    x = 82,376.05

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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.