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Finding the Fourth Proportional to 97,830.40, 146,745.60 and 35,545.60

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Solution

The fourth proportional to 97,830.40, 146,745.60 and 35,545.60 is: 53,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,830.40 : 146,745.60 = 35,545.60 : x
  2. Step 2: Convert to fraction form
    97,830.40/146,745.60 = 35,545.60/x
  3. Step 3: Cross multiply
    97,830.40x = 146,745.60 × 35,545.60
  4. Step 4: Simplify right side
    97,830.40x = 5,216,160,399.36
  5. Step 5: Solve for x
    x = 5,216,160,399.36/97,830.40
  6. Step 6: Final answer
    x = 53,318.40

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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.