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Finding the Fourth Proportional to 122,764.42, 169,393.71 and 69,045.22

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Solution

The fourth proportional to 122,764.42, 169,393.71 and 69,045.22 is: 95,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,764.42 : 169,393.71 = 69,045.22 : x
  2. Step 2: Convert to fraction form
    122,764.42/169,393.71 = 69,045.22/x
  3. Step 3: Cross multiply
    122,764.42x = 169,393.71 × 69,045.22
  4. Step 4: Simplify right side
    122,764.42x = 11,695,825,973.57
  5. Step 5: Solve for x
    x = 11,695,825,973.57/122,764.42
  6. Step 6: Final answer
    x = 95,270.49

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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.