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Finding the Fourth Proportional to 403,362.80, 605,044.20 and 166,875.20

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Solution

The fourth proportional to 403,362.80, 605,044.20 and 166,875.20 is: 250,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,362.80 : 605,044.20 = 166,875.20 : x
  2. Step 2: Convert to fraction form
    403,362.80/605,044.20 = 166,875.20/x
  3. Step 3: Cross multiply
    403,362.80x = 605,044.20 × 166,875.20
  4. Step 4: Simplify right side
    403,362.80x = 100,966,871,883.84
  5. Step 5: Solve for x
    x = 100,966,871,883.84/403,362.80
  6. Step 6: Final answer
    x = 250,312.80

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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.