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Finding the Fourth Proportional to 95,322.76, 142,985.15 and 28,763.47

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Solution

The fourth proportional to 95,322.76, 142,985.15 and 28,763.47 is: 43,145.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,322.76 : 142,985.15 = 28,763.47 : x
  2. Step 2: Convert to fraction form
    95,322.76/142,985.15 = 28,763.47/x
  3. Step 3: Cross multiply
    95,322.76x = 142,985.15 × 28,763.47
  4. Step 4: Simplify right side
    95,322.76x = 4,112,749,215.25
  5. Step 5: Solve for x
    x = 4,112,749,215.25/95,322.76
  6. Step 6: Final answer
    x = 43,145.51

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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.