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Finding the Fourth Proportional to 99,164.58, 136,844.82 and 53,842.68

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Solution

The fourth proportional to 99,164.58, 136,844.82 and 53,842.68 is: 74,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,164.58 : 136,844.82 = 53,842.68 : x
  2. Step 2: Convert to fraction form
    99,164.58/136,844.82 = 53,842.68/x
  3. Step 3: Cross multiply
    99,164.58x = 136,844.82 × 53,842.68
  4. Step 4: Simplify right side
    99,164.58x = 7,368,091,852.92
  5. Step 5: Solve for x
    x = 7,368,091,852.92/99,164.58
  6. Step 6: Final answer
    x = 74,301.65

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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.