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Finding the Fourth Proportional to 97,804.80, 146,708.28 and 31,244.40

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Solution

The fourth proportional to 97,804.80, 146,708.28 and 31,244.40 is: 46,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,804.80 : 146,708.28 = 31,244.40 : x
  2. Step 2: Convert to fraction form
    97,804.80/146,708.28 = 31,244.40/x
  3. Step 3: Cross multiply
    97,804.80x = 146,708.28 × 31,244.40
  4. Step 4: Simplify right side
    97,804.80x = 4,583,812,183.63
  5. Step 5: Solve for x
    x = 4,583,812,183.63/97,804.80
  6. Step 6: Final answer
    x = 46,866.95

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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.