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Finding the Fourth Proportional to 99,241.40, 136,953.32 and 53,919.07

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Solution

The fourth proportional to 99,241.40, 136,953.32 and 53,919.07 is: 74,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,241.40 : 136,953.32 = 53,919.07 : x
  2. Step 2: Convert to fraction form
    99,241.40/136,953.32 = 53,919.07/x
  3. Step 3: Cross multiply
    99,241.40x = 136,953.32 × 53,919.07
  4. Step 4: Simplify right side
    99,241.40x = 7,384,395,035.83
  5. Step 5: Solve for x
    x = 7,384,395,035.83/99,241.40
  6. Step 6: Final answer
    x = 74,408.41

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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.