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Finding the Fourth Proportional to 70,844.63, 97,765.58 and 39,013.45

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Solution

The fourth proportional to 70,844.63, 97,765.58 and 39,013.45 is: 53,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,844.63 : 97,765.58 = 39,013.45 : x
  2. Step 2: Convert to fraction form
    70,844.63/97,765.58 = 39,013.45/x
  3. Step 3: Cross multiply
    70,844.63x = 97,765.58 × 39,013.45
  4. Step 4: Simplify right side
    70,844.63x = 3,814,172,420.17
  5. Step 5: Solve for x
    x = 3,814,172,420.17/70,844.63
  6. Step 6: Final answer
    x = 53,838.56

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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.