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Finding the Fourth Proportional to 75,080.88, 112,643.80 and 43,483.58

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Solution

The fourth proportional to 75,080.88, 112,643.80 and 43,483.58 is: 65,238.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,080.88 : 112,643.80 = 43,483.58 : x
  2. Step 2: Convert to fraction form
    75,080.88/112,643.80 = 43,483.58/x
  3. Step 3: Cross multiply
    75,080.88x = 112,643.80 × 43,483.58
  4. Step 4: Simplify right side
    75,080.88x = 4,898,155,688.80
  5. Step 5: Solve for x
    x = 4,898,155,688.80/75,080.88
  6. Step 6: Final answer
    x = 65,238.39

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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.