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Finding the Fourth Proportional to 250,063.38, 375,133.95 and 83,812.50

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Solution

The fourth proportional to 250,063.38, 375,133.95 and 83,812.50 is: 125,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,063.38 : 375,133.95 = 83,812.50 : x
  2. Step 2: Convert to fraction form
    250,063.38/375,133.95 = 83,812.50/x
  3. Step 3: Cross multiply
    250,063.38x = 375,133.95 × 83,812.50
  4. Step 4: Simplify right side
    250,063.38x = 31,440,914,184.38
  5. Step 5: Solve for x
    x = 31,440,914,184.38/250,063.38
  6. Step 6: Final answer
    x = 125,731.78

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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.