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Finding the Fourth Proportional to 153,663.53, 212,069.67 and 93,249.55

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Solution

The fourth proportional to 153,663.53, 212,069.67 and 93,249.55 is: 128,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,663.53 : 212,069.67 = 93,249.55 : x
  2. Step 2: Convert to fraction form
    153,663.53/212,069.67 = 93,249.55/x
  3. Step 3: Cross multiply
    153,663.53x = 212,069.67 × 93,249.55
  4. Step 4: Simplify right side
    153,663.53x = 19,775,400,765.97
  5. Step 5: Solve for x
    x = 19,775,400,765.97/153,663.53
  6. Step 6: Final answer
    x = 128,692.87

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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.