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Finding the Fourth Proportional to 346,871.70, 520,048.35 and 189,278.10

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Solution

The fourth proportional to 346,871.70, 520,048.35 and 189,278.10 is: 283,775.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,871.70 : 520,048.35 = 189,278.10 : x
  2. Step 2: Convert to fraction form
    346,871.70/520,048.35 = 189,278.10/x
  3. Step 3: Cross multiply
    346,871.70x = 520,048.35 × 189,278.10
  4. Step 4: Simplify right side
    346,871.70x = 98,433,763,596.14
  5. Step 5: Solve for x
    x = 98,433,763,596.14/346,871.70
  6. Step 6: Final answer
    x = 283,775.71

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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.