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Finding the Fourth Proportional to 99,207.98, 136,905.55 and 53,886.55

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Solution

The fourth proportional to 99,207.98, 136,905.55 and 53,886.55 is: 74,362.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,207.98 : 136,905.55 = 53,886.55 : x
  2. Step 2: Convert to fraction form
    99,207.98/136,905.55 = 53,886.55/x
  3. Step 3: Cross multiply
    99,207.98x = 136,905.55 × 53,886.55
  4. Step 4: Simplify right side
    99,207.98x = 7,377,367,765.35
  5. Step 5: Solve for x
    x = 7,377,367,765.35/99,207.98
  6. Step 6: Final answer
    x = 74,362.64

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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.