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Finding the Fourth Proportional to 86,285.19, 119,076.71 and 48,046.71

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Solution

The fourth proportional to 86,285.19, 119,076.71 and 48,046.71 is: 66,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.19 : 119,076.71 = 48,046.71 : x
  2. Step 2: Convert to fraction form
    86,285.19/119,076.71 = 48,046.71/x
  3. Step 3: Cross multiply
    86,285.19x = 119,076.71 × 48,046.71
  4. Step 4: Simplify right side
    86,285.19x = 5,721,244,153.12
  5. Step 5: Solve for x
    x = 5,721,244,153.12/86,285.19
  6. Step 6: Final answer
    x = 66,306.21

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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.