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Finding the Fourth Proportional to 99,278.83, 137,005.68 and 53,956.92

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Solution

The fourth proportional to 99,278.83, 137,005.68 and 53,956.92 is: 74,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,278.83 : 137,005.68 = 53,956.92 : x
  2. Step 2: Convert to fraction form
    99,278.83/137,005.68 = 53,956.92/x
  3. Step 3: Cross multiply
    99,278.83x = 137,005.68 × 53,956.92
  4. Step 4: Simplify right side
    99,278.83x = 7,392,404,180.56
  5. Step 5: Solve for x
    x = 7,392,404,180.56/99,278.83
  6. Step 6: Final answer
    x = 74,461.03

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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.