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Finding the Fourth Proportional to 346,809.60, 520,311.60 and 169,322.40

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Solution

The fourth proportional to 346,809.60, 520,311.60 and 169,322.40 is: 254,031.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,809.60 : 520,311.60 = 169,322.40 : x
  2. Step 2: Convert to fraction form
    346,809.60/520,311.60 = 169,322.40/x
  3. Step 3: Cross multiply
    346,809.60x = 520,311.60 × 169,322.40
  4. Step 4: Simplify right side
    346,809.60x = 88,100,408,859.84
  5. Step 5: Solve for x
    x = 88,100,408,859.84/346,809.60
  6. Step 6: Final answer
    x = 254,031.06

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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.