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Finding the Fourth Proportional to 253,968.20, 381,005.58 and 96,193.16

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Solution

The fourth proportional to 253,968.20, 381,005.58 and 96,193.16 is: 144,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,968.20 : 381,005.58 = 96,193.16 : x
  2. Step 2: Convert to fraction form
    253,968.20/381,005.58 = 96,193.16/x
  3. Step 3: Cross multiply
    253,968.20x = 381,005.58 × 96,193.16
  4. Step 4: Simplify right side
    253,968.20x = 36,650,130,717.83
  5. Step 5: Solve for x
    x = 36,650,130,717.83/253,968.20
  6. Step 6: Final answer
    x = 144,309.92

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1.5x scale

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.