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Finding the Fourth Proportional to 346,809.80, 520,214.70 and 169,662.80

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Solution

The fourth proportional to 346,809.80, 520,214.70 and 169,662.80 is: 254,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,809.80 : 520,214.70 = 169,662.80 : x
  2. Step 2: Convert to fraction form
    346,809.80/520,214.70 = 169,662.80/x
  3. Step 3: Cross multiply
    346,809.80x = 520,214.70 × 169,662.80
  4. Step 4: Simplify right side
    346,809.80x = 88,261,082,603.16
  5. Step 5: Solve for x
    x = 88,261,082,603.16/346,809.80
  6. Step 6: Final answer
    x = 254,494.20

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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.