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Finding the Fourth Proportional to 507,012.60, 760,518.90 and 133,073.40

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Solution

The fourth proportional to 507,012.60, 760,518.90 and 133,073.40 is: 199,610.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,012.60 : 760,518.90 = 133,073.40 : x
  2. Step 2: Convert to fraction form
    507,012.60/760,518.90 = 133,073.40/x
  3. Step 3: Cross multiply
    507,012.60x = 760,518.90 × 133,073.40
  4. Step 4: Simplify right side
    507,012.60x = 101,204,835,787.26
  5. Step 5: Solve for x
    x = 101,204,835,787.26/507,012.60
  6. Step 6: Final answer
    x = 199,610.10

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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.