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Finding the Fourth Proportional to 112,606.81, 168,957.29 and 49,394.31

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Solution

The fourth proportional to 112,606.81, 168,957.29 and 49,394.31 is: 74,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,606.81 : 168,957.29 = 49,394.31 : x
  2. Step 2: Convert to fraction form
    112,606.81/168,957.29 = 49,394.31/x
  3. Step 3: Cross multiply
    112,606.81x = 168,957.29 × 49,394.31
  4. Step 4: Simplify right side
    112,606.81x = 8,345,528,248.92
  5. Step 5: Solve for x
    x = 8,345,528,248.92/112,606.81
  6. Step 6: Final answer
    x = 74,112.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.