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Finding the Fourth Proportional to 100,535.33, 150,802.89 and 25,655.47

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Solution

The fourth proportional to 100,535.33, 150,802.89 and 25,655.47 is: 38,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,535.33 : 150,802.89 = 25,655.47 : x
  2. Step 2: Convert to fraction form
    100,535.33/150,802.89 = 25,655.47/x
  3. Step 3: Cross multiply
    100,535.33x = 150,802.89 × 25,655.47
  4. Step 4: Simplify right side
    100,535.33x = 3,868,918,643.30
  5. Step 5: Solve for x
    x = 3,868,918,643.30/100,535.33
  6. Step 6: Final answer
    x = 38,483.18

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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.