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Finding the Fourth Proportional to 212,149.98, 292,756.95 and 116,660.70

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Solution

The fourth proportional to 212,149.98, 292,756.95 and 116,660.70 is: 160,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,149.98 : 292,756.95 = 116,660.70 : x
  2. Step 2: Convert to fraction form
    212,149.98/292,756.95 = 116,660.70/x
  3. Step 3: Cross multiply
    212,149.98x = 292,756.95 × 116,660.70
  4. Step 4: Simplify right side
    212,149.98x = 34,153,230,716.87
  5. Step 5: Solve for x
    x = 34,153,230,716.87/212,149.98
  6. Step 6: Final answer
    x = 160,986.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.