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Finding the Fourth Proportional to 346,811.60, 520,314.60 and 169,324.40

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Solution

The fourth proportional to 346,811.60, 520,314.60 and 169,324.40 is: 254,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,811.60 : 520,314.60 = 169,324.40 : x
  2. Step 2: Convert to fraction form
    346,811.60/520,314.60 = 169,324.40/x
  3. Step 3: Cross multiply
    346,811.60x = 520,314.60 × 169,324.40
  4. Step 4: Simplify right side
    346,811.60x = 88,101,957,456.24
  5. Step 5: Solve for x
    x = 88,101,957,456.24/346,811.60
  6. Step 6: Final answer
    x = 254,034.06

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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.