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Finding the Fourth Proportional to 75,459.67, 113,041.59 and 43,803.35

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Solution

The fourth proportional to 75,459.67, 113,041.59 and 43,803.35 is: 65,619.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,459.67 : 113,041.59 = 43,803.35 : x
  2. Step 2: Convert to fraction form
    75,459.67/113,041.59 = 43,803.35/x
  3. Step 3: Cross multiply
    75,459.67x = 113,041.59 × 43,803.35
  4. Step 4: Simplify right side
    75,459.67x = 4,951,600,025.76
  5. Step 5: Solve for x
    x = 4,951,600,025.76/75,459.67
  6. Step 6: Final answer
    x = 65,619.16

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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.