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Finding the Fourth Proportional to 86,287.95, 119,074.46 and 48,554.91

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Solution

The fourth proportional to 86,287.95, 119,074.46 and 48,554.91 is: 67,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,287.95 : 119,074.46 = 48,554.91 : x
  2. Step 2: Convert to fraction form
    86,287.95/119,074.46 = 48,554.91/x
  3. Step 3: Cross multiply
    86,287.95x = 119,074.46 × 48,554.91
  4. Step 4: Simplify right side
    86,287.95x = 5,781,649,445.82
  5. Step 5: Solve for x
    x = 5,781,649,445.82/86,287.95
  6. Step 6: Final answer
    x = 67,004.13

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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.