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Finding the Fourth Proportional to 158,705.88, 237,918.67 and 121,432.33

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Solution

The fourth proportional to 158,705.88, 237,918.67 and 121,432.33 is: 182,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,705.88 : 237,918.67 = 121,432.33 : x
  2. Step 2: Convert to fraction form
    158,705.88/237,918.67 = 121,432.33/x
  3. Step 3: Cross multiply
    158,705.88x = 237,918.67 × 121,432.33
  4. Step 4: Simplify right side
    158,705.88x = 28,891,018,448.60
  5. Step 5: Solve for x
    x = 28,891,018,448.60/158,705.88
  6. Step 6: Final answer
    x = 182,041.26

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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.