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Finding the Fourth Proportional to 148,993.40, 223,364.10 and 64,689.92

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Solution

The fourth proportional to 148,993.40, 223,364.10 and 64,689.92 is: 96,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,993.40 : 223,364.10 = 64,689.92 : x
  2. Step 2: Convert to fraction form
    148,993.40/223,364.10 = 64,689.92/x
  3. Step 3: Cross multiply
    148,993.40x = 223,364.10 × 64,689.92
  4. Step 4: Simplify right side
    148,993.40x = 14,449,405,759.87
  5. Step 5: Solve for x
    x = 14,449,405,759.87/148,993.40
  6. Step 6: Final answer
    x = 96,980.17

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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.