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Finding the Fourth Proportional to 100,241.15, 150,263.30 and 64,696.93

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Solution

The fourth proportional to 100,241.15, 150,263.30 and 64,696.93 is: 96,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,241.15 : 150,263.30 = 64,696.93 : x
  2. Step 2: Convert to fraction form
    100,241.15/150,263.30 = 64,696.93/x
  3. Step 3: Cross multiply
    100,241.15x = 150,263.30 × 64,696.93
  4. Step 4: Simplify right side
    100,241.15x = 9,721,573,987.75
  5. Step 5: Solve for x
    x = 9,721,573,987.75/100,241.15
  6. Step 6: Final answer
    x = 96,981.87

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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.