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Finding the Fourth Proportional to 218,512.68, 328,002.30 and 93,941.16

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Solution

The fourth proportional to 218,512.68, 328,002.30 and 93,941.16 is: 141,012.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,512.68 : 328,002.30 = 93,941.16 : x
  2. Step 2: Convert to fraction form
    218,512.68/328,002.30 = 93,941.16/x
  3. Step 3: Cross multiply
    218,512.68x = 328,002.30 × 93,941.16
  4. Step 4: Simplify right side
    218,512.68x = 30,812,916,544.67
  5. Step 5: Solve for x
    x = 30,812,916,544.67/218,512.68
  6. Step 6: Final answer
    x = 141,012.03

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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.