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Finding the Fourth Proportional to 124,551.61, 171,880.31 and 70,836.56

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Solution

The fourth proportional to 124,551.61, 171,880.31 and 70,836.56 is: 97,753.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,551.61 : 171,880.31 = 70,836.56 : x
  2. Step 2: Convert to fraction form
    124,551.61/171,880.31 = 70,836.56/x
  3. Step 3: Cross multiply
    124,551.61x = 171,880.31 × 70,836.56
  4. Step 4: Simplify right side
    124,551.61x = 12,175,410,498.93
  5. Step 5: Solve for x
    x = 12,175,410,498.93/124,551.61
  6. Step 6: Final answer
    x = 97,753.94

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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.