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Finding the Fourth Proportional to 86,673.54, 119,543.65 and 74,594.12

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Solution

The fourth proportional to 86,673.54, 119,543.65 and 74,594.12 is: 102,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673.54 : 119,543.65 = 74,594.12 : x
  2. Step 2: Convert to fraction form
    86,673.54/119,543.65 = 74,594.12/x
  3. Step 3: Cross multiply
    86,673.54x = 119,543.65 × 74,594.12
  4. Step 4: Simplify right side
    86,673.54x = 8,917,252,589.13
  5. Step 5: Solve for x
    x = 8,917,252,589.13/86,673.54
  6. Step 6: Final answer
    x = 102,883.21

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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.