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Finding the Fourth Proportional to 202,356.66, 279,244.86 and 111,710.67

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Solution

The fourth proportional to 202,356.66, 279,244.86 and 111,710.67 is: 154,156.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,356.66 : 279,244.86 = 111,710.67 : x
  2. Step 2: Convert to fraction form
    202,356.66/279,244.86 = 111,710.67/x
  3. Step 3: Cross multiply
    202,356.66x = 279,244.86 × 111,710.67
  4. Step 4: Simplify right side
    202,356.66x = 31,194,630,404.66
  5. Step 5: Solve for x
    x = 31,194,630,404.66/202,356.66
  6. Step 6: Final answer
    x = 154,156.68

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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.