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Finding the Fourth Proportional to 122,957.64, 168,575.57 and 120,715.97

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Solution

The fourth proportional to 122,957.64, 168,575.57 and 120,715.97 is: 165,502.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,957.64 : 168,575.57 = 120,715.97 : x
  2. Step 2: Convert to fraction form
    122,957.64/168,575.57 = 120,715.97/x
  3. Step 3: Cross multiply
    122,957.64x = 168,575.57 × 120,715.97
  4. Step 4: Simplify right side
    122,957.64x = 20,349,762,004.40
  5. Step 5: Solve for x
    x = 20,349,762,004.40/122,957.64
  6. Step 6: Final answer
    x = 165,502.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.