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Finding the Fourth Proportional to 152,939.98, 211,087.38 and 97,713.98

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Solution

The fourth proportional to 152,939.98, 211,087.38 and 97,713.98 is: 134,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,939.98 : 211,087.38 = 97,713.98 : x
  2. Step 2: Convert to fraction form
    152,939.98/211,087.38 = 97,713.98/x
  3. Step 3: Cross multiply
    152,939.98x = 211,087.38 × 97,713.98
  4. Step 4: Simplify right side
    152,939.98x = 20,626,188,130.14
  5. Step 5: Solve for x
    x = 20,626,188,130.14/152,939.98
  6. Step 6: Final answer
    x = 134,864.59

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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.