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Finding the Fourth Proportional to 86,449.84, 119,335.14 and 74,302.24

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Solution

The fourth proportional to 86,449.84, 119,335.14 and 74,302.24 is: 102,566.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,449.84 : 119,335.14 = 74,302.24 : x
  2. Step 2: Convert to fraction form
    86,449.84/119,335.14 = 74,302.24/x
  3. Step 3: Cross multiply
    86,449.84x = 119,335.14 × 74,302.24
  4. Step 4: Simplify right side
    86,449.84x = 8,866,868,212.71
  5. Step 5: Solve for x
    x = 8,866,868,212.71/86,449.84
  6. Step 6: Final answer
    x = 102,566.62

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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.