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Finding the Fourth Proportional to 67,646.08, 101,469.81 and 30,208.06

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Solution

The fourth proportional to 67,646.08, 101,469.81 and 30,208.06 is: 45,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,646.08 : 101,469.81 = 30,208.06 : x
  2. Step 2: Convert to fraction form
    67,646.08/101,469.81 = 30,208.06/x
  3. Step 3: Cross multiply
    67,646.08x = 101,469.81 × 30,208.06
  4. Step 4: Simplify right side
    67,646.08x = 3,065,205,957.63
  5. Step 5: Solve for x
    x = 3,065,205,957.63/67,646.08
  6. Step 6: Final answer
    x = 45,312.40

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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.