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Finding the Fourth Proportional to 235,064.80, 352,561.20 and 77,293.60

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Solution

The fourth proportional to 235,064.80, 352,561.20 and 77,293.60 is: 115,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,064.80 : 352,561.20 = 77,293.60 : x
  2. Step 2: Convert to fraction form
    235,064.80/352,561.20 = 77,293.60/x
  3. Step 3: Cross multiply
    235,064.80x = 352,561.20 × 77,293.60
  4. Step 4: Simplify right side
    235,064.80x = 27,250,724,368.32
  5. Step 5: Solve for x
    x = 27,250,724,368.32/235,064.80
  6. Step 6: Final answer
    x = 115,928.56

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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.