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Finding the Fourth Proportional to 207,160.84, 310,747.96 and 57,402.60

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Solution

The fourth proportional to 207,160.84, 310,747.96 and 57,402.60 is: 86,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,160.84 : 310,747.96 = 57,402.60 : x
  2. Step 2: Convert to fraction form
    207,160.84/310,747.96 = 57,402.60/x
  3. Step 3: Cross multiply
    207,160.84x = 310,747.96 × 57,402.60
  4. Step 4: Simplify right side
    207,160.84x = 17,837,740,848.70
  5. Step 5: Solve for x
    x = 17,837,740,848.70/207,160.84
  6. Step 6: Final answer
    x = 86,105.76

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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.