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Finding the Fourth Proportional to 711,169.17, 1,066,671.54 and 178,649.67

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Solution

The fourth proportional to 711,169.17, 1,066,671.54 and 178,649.67 is: 267,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,169.17 : 1,066,671.54 = 178,649.67 : x
  2. Step 2: Convert to fraction form
    711,169.17/1,066,671.54 = 178,649.67/x
  3. Step 3: Cross multiply
    711,169.17x = 1,066,671.54 × 178,649.67
  4. Step 4: Simplify right side
    711,169.17x = 190,560,518,619.39
  5. Step 5: Solve for x
    x = 190,560,518,619.39/711,169.17
  6. Step 6: Final answer
    x = 267,953.85

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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.