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Finding the Fourth Proportional to 70,983.61, 97,957.67 and 39,152.44

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Solution

The fourth proportional to 70,983.61, 97,957.67 and 39,152.44 is: 54,030.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,983.61 : 97,957.67 = 39,152.44 : x
  2. Step 2: Convert to fraction form
    70,983.61/97,957.67 = 39,152.44/x
  3. Step 3: Cross multiply
    70,983.61x = 97,957.67 × 39,152.44
  4. Step 4: Simplify right side
    70,983.61x = 3,835,281,797.21
  5. Step 5: Solve for x
    x = 3,835,281,797.21/70,983.61
  6. Step 6: Final answer
    x = 54,030.53

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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.