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Finding the Fourth Proportional to 99,590.96, 137,433.74 and 54,269.34

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Solution

The fourth proportional to 99,590.96, 137,433.74 and 54,269.34 is: 74,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,590.96 : 137,433.74 = 54,269.34 : x
  2. Step 2: Convert to fraction form
    99,590.96/137,433.74 = 54,269.34/x
  3. Step 3: Cross multiply
    99,590.96x = 137,433.74 × 54,269.34
  4. Step 4: Simplify right side
    99,590.96x = 7,458,438,363.53
  5. Step 5: Solve for x
    x = 7,458,438,363.53/99,590.96
  6. Step 6: Final answer
    x = 74,890.72

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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.