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Finding the Fourth Proportional to 99,707.62, 137,594.33 and 54,995.62

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Solution

The fourth proportional to 99,707.62, 137,594.33 and 54,995.62 is: 75,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.62 : 137,594.33 = 54,995.62 : x
  2. Step 2: Convert to fraction form
    99,707.62/137,594.33 = 54,995.62/x
  3. Step 3: Cross multiply
    99,707.62x = 137,594.33 × 54,995.62
  4. Step 4: Simplify right side
    99,707.62x = 7,567,085,486.83
  5. Step 5: Solve for x
    x = 7,567,085,486.83/99,707.62
  6. Step 6: Final answer
    x = 75,892.75

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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.