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Finding the Fourth Proportional to 75,709.59, 104,482.76 and 43,888.47

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Solution

The fourth proportional to 75,709.59, 104,482.76 and 43,888.47 is: 60,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,709.59 : 104,482.76 = 43,888.47 : x
  2. Step 2: Convert to fraction form
    75,709.59/104,482.76 = 43,888.47/x
  3. Step 3: Cross multiply
    75,709.59x = 104,482.76 × 43,888.47
  4. Step 4: Simplify right side
    75,709.59x = 4,585,588,258.33
  5. Step 5: Solve for x
    x = 4,585,588,258.33/75,709.59
  6. Step 6: Final answer
    x = 60,568.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.