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Finding the Fourth Proportional to 346,717.70, 520,076.55 and 147,004.10

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Solution

The fourth proportional to 346,717.70, 520,076.55 and 147,004.10 is: 220,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,717.70 : 520,076.55 = 147,004.10 : x
  2. Step 2: Convert to fraction form
    346,717.70/520,076.55 = 147,004.10/x
  3. Step 3: Cross multiply
    346,717.70x = 520,076.55 × 147,004.10
  4. Step 4: Simplify right side
    346,717.70x = 76,453,385,163.86
  5. Step 5: Solve for x
    x = 76,453,385,163.86/346,717.70
  6. Step 6: Final answer
    x = 220,506.15

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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.