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Finding the Fourth Proportional to 59,078.40, 88,660.80 and 39,350.40

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Solution

The fourth proportional to 59,078.40, 88,660.80 and 39,350.40 is: 59,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,078.40 : 88,660.80 = 39,350.40 : x
  2. Step 2: Convert to fraction form
    59,078.40/88,660.80 = 39,350.40/x
  3. Step 3: Cross multiply
    59,078.40x = 88,660.80 × 39,350.40
  4. Step 4: Simplify right side
    59,078.40x = 3,488,837,944.32
  5. Step 5: Solve for x
    x = 3,488,837,944.32/59,078.40
  6. Step 6: Final answer
    x = 59,054.37

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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.