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Finding the Fourth Proportional to 88,266.60, 132,399.90 and 79,518.60

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Solution

The fourth proportional to 88,266.60, 132,399.90 and 79,518.60 is: 119,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,266.60 : 132,399.90 = 79,518.60 : x
  2. Step 2: Convert to fraction form
    88,266.60/132,399.90 = 79,518.60/x
  3. Step 3: Cross multiply
    88,266.60x = 132,399.90 × 79,518.60
  4. Step 4: Simplify right side
    88,266.60x = 10,528,254,688.14
  5. Step 5: Solve for x
    x = 10,528,254,688.14/88,266.60
  6. Step 6: Final answer
    x = 119,277.90

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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.