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Finding the Fourth Proportional to 99,147.44, 136,823.84 and 53,825.51

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Solution

The fourth proportional to 99,147.44, 136,823.84 and 53,825.51 is: 74,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,147.44 : 136,823.84 = 53,825.51 : x
  2. Step 2: Convert to fraction form
    99,147.44/136,823.84 = 53,825.51/x
  3. Step 3: Cross multiply
    99,147.44x = 136,823.84 × 53,825.51
  4. Step 4: Simplify right side
    99,147.44x = 7,364,612,014.91
  5. Step 5: Solve for x
    x = 7,364,612,014.91/99,147.44
  6. Step 6: Final answer
    x = 74,279.40

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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.