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Finding the Fourth Proportional to 72,409.77, 108,588.02 and 25,012.80

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Solution

The fourth proportional to 72,409.77, 108,588.02 and 25,012.80 is: 37,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,409.77 : 108,588.02 = 25,012.80 : x
  2. Step 2: Convert to fraction form
    72,409.77/108,588.02 = 25,012.80/x
  3. Step 3: Cross multiply
    72,409.77x = 108,588.02 × 25,012.80
  4. Step 4: Simplify right side
    72,409.77x = 2,716,090,301.59
  5. Step 5: Solve for x
    x = 2,716,090,301.59/72,409.77
  6. Step 6: Final answer
    x = 37,510.00

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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.