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Finding the Fourth Proportional to 72,192.48, 108,307.17 and 27,807.32

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Solution

The fourth proportional to 72,192.48, 108,307.17 and 27,807.32 is: 41,718.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,192.48 : 108,307.17 = 27,807.32 : x
  2. Step 2: Convert to fraction form
    72,192.48/108,307.17 = 27,807.32/x
  3. Step 3: Cross multiply
    72,192.48x = 108,307.17 × 27,807.32
  4. Step 4: Simplify right side
    72,192.48x = 3,011,731,592.95
  5. Step 5: Solve for x
    x = 3,011,731,592.95/72,192.48
  6. Step 6: Final answer
    x = 41,718.08

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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.