Home / 252,252.48-378,380.16-74,761.12

Finding the Fourth Proportional to 252,252.48, 378,380.16 and 74,761.12

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Solution

The fourth proportional to 252,252.48, 378,380.16 and 74,761.12 is: 112,142.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,252.48 : 378,380.16 = 74,761.12 : x
  2. Step 2: Convert to fraction form
    252,252.48/378,380.16 = 74,761.12/x
  3. Step 3: Cross multiply
    252,252.48x = 378,380.16 × 74,761.12
  4. Step 4: Simplify right side
    252,252.48x = 28,288,124,547.38
  5. Step 5: Solve for x
    x = 28,288,124,547.38/252,252.48
  6. Step 6: Final answer
    x = 112,142.11

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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.