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Finding the Fourth Proportional to 64,887.62, 97,205.19 and 42,633.38

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Solution

The fourth proportional to 64,887.62, 97,205.19 and 42,633.38 is: 63,867.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,887.62 : 97,205.19 = 42,633.38 : x
  2. Step 2: Convert to fraction form
    64,887.62/97,205.19 = 42,633.38/x
  3. Step 3: Cross multiply
    64,887.62x = 97,205.19 × 42,633.38
  4. Step 4: Simplify right side
    64,887.62x = 4,144,185,803.24
  5. Step 5: Solve for x
    x = 4,144,185,803.24/64,887.62
  6. Step 6: Final answer
    x = 63,867.13

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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.