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Finding the Fourth Proportional to 124,297.71, 171,529.95 and 67,709.10

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Solution

The fourth proportional to 124,297.71, 171,529.95 and 67,709.10 is: 93,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,297.71 : 171,529.95 = 67,709.10 : x
  2. Step 2: Convert to fraction form
    124,297.71/171,529.95 = 67,709.10/x
  3. Step 3: Cross multiply
    124,297.71x = 171,529.95 × 67,709.10
  4. Step 4: Simplify right side
    124,297.71x = 11,614,138,537.55
  5. Step 5: Solve for x
    x = 11,614,138,537.55/124,297.71
  6. Step 6: Final answer
    x = 93,438.07

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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.