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Finding the Fourth Proportional to 346,703.60, 520,105.80 and 147,023.60

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Solution

The fourth proportional to 346,703.60, 520,105.80 and 147,023.60 is: 220,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,703.60 : 520,105.80 = 147,023.60 : x
  2. Step 2: Convert to fraction form
    346,703.60/520,105.80 = 147,023.60/x
  3. Step 3: Cross multiply
    346,703.60x = 520,105.80 × 147,023.60
  4. Step 4: Simplify right side
    346,703.60x = 76,467,827,096.88
  5. Step 5: Solve for x
    x = 76,467,827,096.88/346,703.60
  6. Step 6: Final answer
    x = 220,556.77

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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.