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Finding the Fourth Proportional to 99,614.64, 137,464.22 and 54,291.68

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Solution

The fourth proportional to 99,614.64, 137,464.22 and 54,291.68 is: 74,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,614.64 : 137,464.22 = 54,291.68 : x
  2. Step 2: Convert to fraction form
    99,614.64/137,464.22 = 54,291.68/x
  3. Step 3: Cross multiply
    99,614.64x = 137,464.22 × 54,291.68
  4. Step 4: Simplify right side
    99,614.64x = 7,463,163,407.59
  5. Step 5: Solve for x
    x = 7,463,163,407.59/99,614.64
  6. Step 6: Final answer
    x = 74,920.34

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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.