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Finding the Fourth Proportional to 99,641.70, 137,225.60 and 97,464.42

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Solution

The fourth proportional to 99,641.70, 137,225.60 and 97,464.42 is: 134,227.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,641.70 : 137,225.60 = 97,464.42 : x
  2. Step 2: Convert to fraction form
    99,641.70/137,225.60 = 97,464.42/x
  3. Step 3: Cross multiply
    99,641.70x = 137,225.60 × 97,464.42
  4. Step 4: Simplify right side
    99,641.70x = 13,374,613,513.15
  5. Step 5: Solve for x
    x = 13,374,613,513.15/99,641.70
  6. Step 6: Final answer
    x = 134,227.07

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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.