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Finding the Fourth Proportional to 96,666.78, 133,338.78 and 69,848.67

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Solution

The fourth proportional to 96,666.78, 133,338.78 and 69,848.67 is: 96,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,666.78 : 133,338.78 = 69,848.67 : x
  2. Step 2: Convert to fraction form
    96,666.78/133,338.78 = 69,848.67/x
  3. Step 3: Cross multiply
    96,666.78x = 133,338.78 × 69,848.67
  4. Step 4: Simplify right side
    96,666.78x = 9,313,536,442.42
  5. Step 5: Solve for x
    x = 9,313,536,442.42/96,666.78
  6. Step 6: Final answer
    x = 96,346.82

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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.