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Finding the Fourth Proportional to 158,751.87, 238,127.79 and 74,570.13

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Solution

The fourth proportional to 158,751.87, 238,127.79 and 74,570.13 is: 111,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,751.87 : 238,127.79 = 74,570.13 : x
  2. Step 2: Convert to fraction form
    158,751.87/238,127.79 = 74,570.13/x
  3. Step 3: Cross multiply
    158,751.87x = 238,127.79 × 74,570.13
  4. Step 4: Simplify right side
    158,751.87x = 17,757,220,256.91
  5. Step 5: Solve for x
    x = 17,757,220,256.91/158,751.87
  6. Step 6: Final answer
    x = 111,855.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.