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Finding the Fourth Proportional to 123,792.47, 170,837.70 and 70,076.37

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Solution

The fourth proportional to 123,792.47, 170,837.70 and 70,076.37 is: 96,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,792.47 : 170,837.70 = 70,076.37 : x
  2. Step 2: Convert to fraction form
    123,792.47/170,837.70 = 70,076.37/x
  3. Step 3: Cross multiply
    123,792.47x = 170,837.70 × 70,076.37
  4. Step 4: Simplify right side
    123,792.47x = 11,971,685,875.15
  5. Step 5: Solve for x
    x = 11,971,685,875.15/123,792.47
  6. Step 6: Final answer
    x = 96,707.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.