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Finding the Fourth Proportional to 157,412.80, 236,119.20 and 141,083.20

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Solution

The fourth proportional to 157,412.80, 236,119.20 and 141,083.20 is: 211,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,412.80 : 236,119.20 = 141,083.20 : x
  2. Step 2: Convert to fraction form
    157,412.80/236,119.20 = 141,083.20/x
  3. Step 3: Cross multiply
    157,412.80x = 236,119.20 × 141,083.20
  4. Step 4: Simplify right side
    157,412.80x = 33,312,452,317.44
  5. Step 5: Solve for x
    x = 33,312,452,317.44/157,412.80
  6. Step 6: Final answer
    x = 211,624.80

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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.