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Finding the Fourth Proportional to 72,534, 108,816.60 and 22,613.04

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Solution

The fourth proportional to 72,534, 108,816.60 and 22,613.04 is: 33,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,534 : 108,816.60 = 22,613.04 : x
  2. Step 2: Convert to fraction form
    72,534/108,816.60 = 22,613.04/x
  3. Step 3: Cross multiply
    72,534x = 108,816.60 × 22,613.04
  4. Step 4: Simplify right side
    72,534x = 2,460,674,128.46
  5. Step 5: Solve for x
    x = 2,460,674,128.46/72,534
  6. Step 6: Final answer
    x = 33,924.42

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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.