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Finding the Fourth Proportional to 153,389.35, 211,687.48 and 92,965.73

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Solution

The fourth proportional to 153,389.35, 211,687.48 and 92,965.73 is: 128,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,389.35 : 211,687.48 = 92,965.73 : x
  2. Step 2: Convert to fraction form
    153,389.35/211,687.48 = 92,965.73/x
  3. Step 3: Cross multiply
    153,389.35x = 211,687.48 × 92,965.73
  4. Step 4: Simplify right side
    153,389.35x = 19,679,679,644.90
  5. Step 5: Solve for x
    x = 19,679,679,644.90/153,389.35
  6. Step 6: Final answer
    x = 128,298.87

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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.