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Finding the Fourth Proportional to 72,903.26, 109,196.65 and 35,384.48

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Solution

The fourth proportional to 72,903.26, 109,196.65 and 35,384.48 is: 52,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,903.26 : 109,196.65 = 35,384.48 : x
  2. Step 2: Convert to fraction form
    72,903.26/109,196.65 = 35,384.48/x
  3. Step 3: Cross multiply
    72,903.26x = 109,196.65 × 35,384.48
  4. Step 4: Simplify right side
    72,903.26x = 3,863,866,677.99
  5. Step 5: Solve for x
    x = 3,863,866,677.99/72,903.26
  6. Step 6: Final answer
    x = 52,999.92

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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.