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Finding the Fourth Proportional to 72,468, 108,717.60 and 22,547.04

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Solution

The fourth proportional to 72,468, 108,717.60 and 22,547.04 is: 33,825.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,468 : 108,717.60 = 22,547.04 : x
  2. Step 2: Convert to fraction form
    72,468/108,717.60 = 22,547.04/x
  3. Step 3: Cross multiply
    72,468x = 108,717.60 × 22,547.04
  4. Step 4: Simplify right side
    72,468x = 2,451,260,075.90
  5. Step 5: Solve for x
    x = 2,451,260,075.90/72,468
  6. Step 6: Final answer
    x = 33,825.41

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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.