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Finding the Fourth Proportional to 86,580.87, 119,480.99 and 48,338.16

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Solution

The fourth proportional to 86,580.87, 119,480.99 and 48,338.16 is: 66,706.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,580.87 : 119,480.99 = 48,338.16 : x
  2. Step 2: Convert to fraction form
    86,580.87/119,480.99 = 48,338.16/x
  3. Step 3: Cross multiply
    86,580.87x = 119,480.99 × 48,338.16
  4. Step 4: Simplify right side
    86,580.87x = 5,775,490,969.89
  5. Step 5: Solve for x
    x = 5,775,490,969.89/86,580.87
  6. Step 6: Final answer
    x = 66,706.32

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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.