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Finding the Fourth Proportional to 96,987.51, 133,837.88 and 54,543.51

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Solution

The fourth proportional to 96,987.51, 133,837.88 and 54,543.51 is: 75,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,987.51 : 133,837.88 = 54,543.51 : x
  2. Step 2: Convert to fraction form
    96,987.51/133,837.88 = 54,543.51/x
  3. Step 3: Cross multiply
    96,987.51x = 133,837.88 × 54,543.51
  4. Step 4: Simplify right side
    96,987.51x = 7,299,987,473.44
  5. Step 5: Solve for x
    x = 7,299,987,473.44/96,987.51
  6. Step 6: Final answer
    x = 75,267.29

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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.