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Finding the Fourth Proportional to 346,636.90, 520,052.55 and 147,052.90

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Solution

The fourth proportional to 346,636.90, 520,052.55 and 147,052.90 is: 220,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,636.90 : 520,052.55 = 147,052.90 : x
  2. Step 2: Convert to fraction form
    346,636.90/520,052.55 = 147,052.90/x
  3. Step 3: Cross multiply
    346,636.90x = 520,052.55 × 147,052.90
  4. Step 4: Simplify right side
    346,636.90x = 76,475,235,629.90
  5. Step 5: Solve for x
    x = 76,475,235,629.90/346,636.90
  6. Step 6: Final answer
    x = 220,620.58

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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.