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Finding the Fourth Proportional to 133,055.16, 183,613.17 and 72,626.79

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Solution

The fourth proportional to 133,055.16, 183,613.17 and 72,626.79 is: 100,223.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,055.16 : 183,613.17 = 72,626.79 : x
  2. Step 2: Convert to fraction form
    133,055.16/183,613.17 = 72,626.79/x
  3. Step 3: Cross multiply
    133,055.16x = 183,613.17 × 72,626.79
  4. Step 4: Simplify right side
    133,055.16x = 13,335,235,138.82
  5. Step 5: Solve for x
    x = 13,335,235,138.82/133,055.16
  6. Step 6: Final answer
    x = 100,223.36

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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.