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Finding the Fourth Proportional to 507,143.08, 760,539.47 and 147,216.37

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Solution

The fourth proportional to 507,143.08, 760,539.47 and 147,216.37 is: 220,773.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,143.08 : 760,539.47 = 147,216.37 : x
  2. Step 2: Convert to fraction form
    507,143.08/760,539.47 = 147,216.37/x
  3. Step 3: Cross multiply
    507,143.08x = 760,539.47 × 147,216.37
  4. Step 4: Simplify right side
    507,143.08x = 111,963,857,377.69
  5. Step 5: Solve for x
    x = 111,963,857,377.69/507,143.08
  6. Step 6: Final answer
    x = 220,773.71

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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.