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Finding the Fourth Proportional to 250,415.64, 375,637.14 and 63,428.76

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Solution

The fourth proportional to 250,415.64, 375,637.14 and 63,428.76 is: 95,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,415.64 : 375,637.14 = 63,428.76 : x
  2. Step 2: Convert to fraction form
    250,415.64/375,637.14 = 63,428.76/x
  3. Step 3: Cross multiply
    250,415.64x = 375,637.14 × 63,428.76
  4. Step 4: Simplify right side
    250,415.64x = 23,826,198,000.15
  5. Step 5: Solve for x
    x = 23,826,198,000.15/250,415.64
  6. Step 6: Final answer
    x = 95,146.61

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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.