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Finding the Fourth Proportional to 97,677.60, 146,516.40 and 91,845.60

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Solution

The fourth proportional to 97,677.60, 146,516.40 and 91,845.60 is: 137,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,677.60 : 146,516.40 = 91,845.60 : x
  2. Step 2: Convert to fraction form
    97,677.60/146,516.40 = 91,845.60/x
  3. Step 3: Cross multiply
    97,677.60x = 146,516.40 × 91,845.60
  4. Step 4: Simplify right side
    97,677.60x = 13,456,886,667.84
  5. Step 5: Solve for x
    x = 13,456,886,667.84/97,677.60
  6. Step 6: Final answer
    x = 137,768.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.