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Finding the Fourth Proportional to 140,616.46, 210,809.13 and 65,699.56

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Solution

The fourth proportional to 140,616.46, 210,809.13 and 65,699.56 is: 98,495.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,616.46 : 210,809.13 = 65,699.56 : x
  2. Step 2: Convert to fraction form
    140,616.46/210,809.13 = 65,699.56/x
  3. Step 3: Cross multiply
    140,616.46x = 210,809.13 × 65,699.56
  4. Step 4: Simplify right side
    140,616.46x = 13,850,067,084.98
  5. Step 5: Solve for x
    x = 13,850,067,084.98/140,616.46
  6. Step 6: Final answer
    x = 98,495.35

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1.5x scale

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.