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Finding the Fourth Proportional to 346,467.60, 520,138.80 and 186,670.80

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Solution

The fourth proportional to 346,467.60, 520,138.80 and 186,670.80 is: 280,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,467.60 : 520,138.80 = 186,670.80 : x
  2. Step 2: Convert to fraction form
    346,467.60/520,138.80 = 186,670.80/x
  3. Step 3: Cross multiply
    346,467.60x = 520,138.80 × 186,670.80
  4. Step 4: Simplify right side
    346,467.60x = 97,094,725,907.04
  5. Step 5: Solve for x
    x = 97,094,725,907.04/346,467.60
  6. Step 6: Final answer
    x = 280,241.86

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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.