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Finding the Fourth Proportional to 124,349.42, 171,601.66 and 67,760.80

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Solution

The fourth proportional to 124,349.42, 171,601.66 and 67,760.80 is: 93,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,349.42 : 171,601.66 = 67,760.80 : x
  2. Step 2: Convert to fraction form
    124,349.42/171,601.66 = 67,760.80/x
  3. Step 3: Cross multiply
    124,349.42x = 171,601.66 × 67,760.80
  4. Step 4: Simplify right side
    124,349.42x = 11,627,865,762.93
  5. Step 5: Solve for x
    x = 11,627,865,762.93/124,349.42
  6. Step 6: Final answer
    x = 93,509.61

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1.5x scale

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.