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Finding the Fourth Proportional to 346,873.20, 520,050.60 and 189,279.60

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Solution

The fourth proportional to 346,873.20, 520,050.60 and 189,279.60 is: 283,777.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,873.20 : 520,050.60 = 189,279.60 : x
  2. Step 2: Convert to fraction form
    346,873.20/520,050.60 = 189,279.60/x
  3. Step 3: Cross multiply
    346,873.20x = 520,050.60 × 189,279.60
  4. Step 4: Simplify right side
    346,873.20x = 98,434,969,547.76
  5. Step 5: Solve for x
    x = 98,434,969,547.76/346,873.20
  6. Step 6: Final answer
    x = 283,777.96

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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.