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Finding the Fourth Proportional to 70,156.35, 96,843.47 and 43,309.71

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Solution

The fourth proportional to 70,156.35, 96,843.47 and 43,309.71 is: 59,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,156.35 : 96,843.47 = 43,309.71 : x
  2. Step 2: Convert to fraction form
    70,156.35/96,843.47 = 43,309.71/x
  3. Step 3: Cross multiply
    70,156.35x = 96,843.47 × 43,309.71
  4. Step 4: Simplify right side
    70,156.35x = 4,194,262,384.55
  5. Step 5: Solve for x
    x = 4,194,262,384.55/70,156.35
  6. Step 6: Final answer
    x = 59,784.50

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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.