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Finding the Fourth Proportional to 88,697.90, 133,046.85 and 55,628.30

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Solution

The fourth proportional to 88,697.90, 133,046.85 and 55,628.30 is: 83,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,697.90 : 133,046.85 = 55,628.30 : x
  2. Step 2: Convert to fraction form
    88,697.90/133,046.85 = 55,628.30/x
  3. Step 3: Cross multiply
    88,697.90x = 133,046.85 × 55,628.30
  4. Step 4: Simplify right side
    88,697.90x = 7,401,170,085.86
  5. Step 5: Solve for x
    x = 7,401,170,085.86/88,697.90
  6. Step 6: Final answer
    x = 83,442.45

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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.