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Finding the Fourth Proportional to 346,740.88, 520,155 and 119,080.96

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Solution

The fourth proportional to 346,740.88, 520,155 and 119,080.96 is: 178,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,740.88 : 520,155 = 119,080.96 : x
  2. Step 2: Convert to fraction form
    346,740.88/520,155 = 119,080.96/x
  3. Step 3: Cross multiply
    346,740.88x = 520,155 × 119,080.96
  4. Step 4: Simplify right side
    346,740.88x = 61,940,556,748.80
  5. Step 5: Solve for x
    x = 61,940,556,748.80/346,740.88
  6. Step 6: Final answer
    x = 178,636.44

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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.