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Finding the Fourth Proportional to 124,336.97, 186,506.73 and 99,534.71

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Solution

The fourth proportional to 124,336.97, 186,506.73 and 99,534.71 is: 149,303.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,336.97 : 186,506.73 = 99,534.71 : x
  2. Step 2: Convert to fraction form
    124,336.97/186,506.73 = 99,534.71/x
  3. Step 3: Cross multiply
    124,336.97x = 186,506.73 × 99,534.71
  4. Step 4: Simplify right side
    124,336.97x = 18,563,892,351.06
  5. Step 5: Solve for x
    x = 18,563,892,351.06/124,336.97
  6. Step 6: Final answer
    x = 149,303.08

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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.