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Finding the Fourth Proportional to 75,478.37, 104,050.37 and 52,746.79

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Solution

The fourth proportional to 75,478.37, 104,050.37 and 52,746.79 is: 72,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,478.37 : 104,050.37 = 52,746.79 : x
  2. Step 2: Convert to fraction form
    75,478.37/104,050.37 = 52,746.79/x
  3. Step 3: Cross multiply
    75,478.37x = 104,050.37 × 52,746.79
  4. Step 4: Simplify right side
    75,478.37x = 5,488,323,015.81
  5. Step 5: Solve for x
    x = 5,488,323,015.81/75,478.37
  6. Step 6: Final answer
    x = 72,713.85

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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.