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Finding the Fourth Proportional to 110,988, 153,164.02 and 60,687

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Solution

The fourth proportional to 110,988, 153,164.02 and 60,687 is: 83,748.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,988 : 153,164.02 = 60,687 : x
  2. Step 2: Convert to fraction form
    110,988/153,164.02 = 60,687/x
  3. Step 3: Cross multiply
    110,988x = 153,164.02 × 60,687
  4. Step 4: Simplify right side
    110,988x = 9,295,064,881.74
  5. Step 5: Solve for x
    x = 9,295,064,881.74/110,988
  6. Step 6: Final answer
    x = 83,748.38

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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.