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Finding the Fourth Proportional to 99,516.96, 137,334.96 and 54,804.96

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Solution

The fourth proportional to 99,516.96, 137,334.96 and 54,804.96 is: 75,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,516.96 : 137,334.96 = 54,804.96 : x
  2. Step 2: Convert to fraction form
    99,516.96/137,334.96 = 54,804.96/x
  3. Step 3: Cross multiply
    99,516.96x = 137,334.96 × 54,804.96
  4. Step 4: Simplify right side
    99,516.96x = 7,526,636,989.40
  5. Step 5: Solve for x
    x = 7,526,636,989.40/99,516.96
  6. Step 6: Final answer
    x = 75,631.70

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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.