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Finding the Fourth Proportional to 86,561.49, 119,460.86 and 48,328.56

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Solution

The fourth proportional to 86,561.49, 119,460.86 and 48,328.56 is: 66,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,561.49 : 119,460.86 = 48,328.56 : x
  2. Step 2: Convert to fraction form
    86,561.49/119,460.86 = 48,328.56/x
  3. Step 3: Cross multiply
    86,561.49x = 119,460.86 × 48,328.56
  4. Step 4: Simplify right side
    86,561.49x = 5,773,371,279.75
  5. Step 5: Solve for x
    x = 5,773,371,279.75/86,561.49
  6. Step 6: Final answer
    x = 66,696.76

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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.