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Finding the Fourth Proportional to 88,692.90, 133,039.35 and 71,196.90

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Solution

The fourth proportional to 88,692.90, 133,039.35 and 71,196.90 is: 106,795.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,692.90 : 133,039.35 = 71,196.90 : x
  2. Step 2: Convert to fraction form
    88,692.90/133,039.35 = 71,196.90/x
  3. Step 3: Cross multiply
    88,692.90x = 133,039.35 × 71,196.90
  4. Step 4: Simplify right side
    88,692.90x = 9,471,989,298.02
  5. Step 5: Solve for x
    x = 9,471,989,298.02/88,692.90
  6. Step 6: Final answer
    x = 106,795.35

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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.