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Finding the Fourth Proportional to 200,429.04, 300,671.16 and 67,347.30

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Solution

The fourth proportional to 200,429.04, 300,671.16 and 67,347.30 is: 101,030.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,429.04 : 300,671.16 = 67,347.30 : x
  2. Step 2: Convert to fraction form
    200,429.04/300,671.16 = 67,347.30/x
  3. Step 3: Cross multiply
    200,429.04x = 300,671.16 × 67,347.30
  4. Step 4: Simplify right side
    200,429.04x = 20,249,390,813.87
  5. Step 5: Solve for x
    x = 20,249,390,813.87/200,429.04
  6. Step 6: Final answer
    x = 101,030.22

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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.