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Finding the Fourth Proportional to 124,645.84, 186,969.06 and 49,772.08

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Solution

The fourth proportional to 124,645.84, 186,969.06 and 49,772.08 is: 74,658.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,645.84 : 186,969.06 = 49,772.08 : x
  2. Step 2: Convert to fraction form
    124,645.84/186,969.06 = 49,772.08/x
  3. Step 3: Cross multiply
    124,645.84x = 186,969.06 × 49,772.08
  4. Step 4: Simplify right side
    124,645.84x = 9,305,839,011.84
  5. Step 5: Solve for x
    x = 9,305,839,011.84/124,645.84
  6. Step 6: Final answer
    x = 74,658.24

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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.