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Finding the Fourth Proportional to 113,952.52, 157,212.66 and 71,495.56

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Solution

The fourth proportional to 113,952.52, 157,212.66 and 71,495.56 is: 98,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,952.52 : 157,212.66 = 71,495.56 : x
  2. Step 2: Convert to fraction form
    113,952.52/157,212.66 = 71,495.56/x
  3. Step 3: Cross multiply
    113,952.52x = 157,212.66 × 71,495.56
  4. Step 4: Simplify right side
    113,952.52x = 11,240,007,165.79
  5. Step 5: Solve for x
    x = 11,240,007,165.79/113,952.52
  6. Step 6: Final answer
    x = 98,637.64

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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.