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Finding the Fourth Proportional to 70,938.77, 97,900.36 and 43,355.29

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Solution

The fourth proportional to 70,938.77, 97,900.36 and 43,355.29 is: 59,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,938.77 : 97,900.36 = 43,355.29 : x
  2. Step 2: Convert to fraction form
    70,938.77/97,900.36 = 43,355.29/x
  3. Step 3: Cross multiply
    70,938.77x = 97,900.36 × 43,355.29
  4. Step 4: Simplify right side
    70,938.77x = 4,244,497,792.63
  5. Step 5: Solve for x
    x = 4,244,497,792.63/70,938.77
  6. Step 6: Final answer
    x = 59,833.26

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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.