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Finding the Fourth Proportional to 200,372.16, 300,603.36 and 67,259.84

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Solution

The fourth proportional to 200,372.16, 300,603.36 and 67,259.84 is: 100,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,372.16 : 300,603.36 = 67,259.84 : x
  2. Step 2: Convert to fraction form
    200,372.16/300,603.36 = 67,259.84/x
  3. Step 3: Cross multiply
    200,372.16x = 300,603.36 × 67,259.84
  4. Step 4: Simplify right side
    200,372.16x = 20,218,533,897.06
  5. Step 5: Solve for x
    x = 20,218,533,897.06/200,372.16
  6. Step 6: Final answer
    x = 100,904.91

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1.5x scale

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.