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Finding the Fourth Proportional to 99,162.63, 136,843.99 and 53,840.24

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Solution

The fourth proportional to 99,162.63, 136,843.99 and 53,840.24 is: 74,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,162.63 : 136,843.99 = 53,840.24 : x
  2. Step 2: Convert to fraction form
    99,162.63/136,843.99 = 53,840.24/x
  3. Step 3: Cross multiply
    99,162.63x = 136,843.99 × 53,840.24
  4. Step 4: Simplify right side
    99,162.63x = 7,367,713,264.16
  5. Step 5: Solve for x
    x = 7,367,713,264.16/99,162.63
  6. Step 6: Final answer
    x = 74,299.29

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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.