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Finding the Fourth Proportional to 240,781.82, 360,975.69 and 90,937.08

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Solution

The fourth proportional to 240,781.82, 360,975.69 and 90,937.08 is: 136,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,781.82 : 360,975.69 = 90,937.08 : x
  2. Step 2: Convert to fraction form
    240,781.82/360,975.69 = 90,937.08/x
  3. Step 3: Cross multiply
    240,781.82x = 360,975.69 × 90,937.08
  4. Step 4: Simplify right side
    240,781.82x = 32,826,075,199.59
  5. Step 5: Solve for x
    x = 32,826,075,199.59/240,781.82
  6. Step 6: Final answer
    x = 136,331.21

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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.