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Finding the Fourth Proportional to 86,585.77, 119,487.19 and 48,345.91

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Solution

The fourth proportional to 86,585.77, 119,487.19 and 48,345.91 is: 66,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,585.77 : 119,487.19 = 48,345.91 : x
  2. Step 2: Convert to fraction form
    86,585.77/119,487.19 = 48,345.91/x
  3. Step 3: Cross multiply
    86,585.77x = 119,487.19 × 48,345.91
  4. Step 4: Simplify right side
    86,585.77x = 5,776,716,933.89
  5. Step 5: Solve for x
    x = 5,776,716,933.89/86,585.77
  6. Step 6: Final answer
    x = 66,716.70

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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.