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Finding the Fourth Proportional to 346,449.80, 519,601.80 and 146,776.70

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Solution

The fourth proportional to 346,449.80, 519,601.80 and 146,776.70 is: 220,134.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,449.80 : 519,601.80 = 146,776.70 : x
  2. Step 2: Convert to fraction form
    346,449.80/519,601.80 = 146,776.70/x
  3. Step 3: Cross multiply
    346,449.80x = 519,601.80 × 146,776.70
  4. Step 4: Simplify right side
    346,449.80x = 76,265,437,518.06
  5. Step 5: Solve for x
    x = 76,265,437,518.06/346,449.80
  6. Step 6: Final answer
    x = 220,134.17

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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.