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Finding the Fourth Proportional to 122,124.72, 183,255.12 and 65,963.68

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Solution

The fourth proportional to 122,124.72, 183,255.12 and 65,963.68 is: 98,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,124.72 : 183,255.12 = 65,963.68 : x
  2. Step 2: Convert to fraction form
    122,124.72/183,255.12 = 65,963.68/x
  3. Step 3: Cross multiply
    122,124.72x = 183,255.12 × 65,963.68
  4. Step 4: Simplify right side
    122,124.72x = 12,088,182,094.04
  5. Step 5: Solve for x
    x = 12,088,182,094.04/122,124.72
  6. Step 6: Final answer
    x = 98,982.27

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1.5x scale

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.