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Finding the Fourth Proportional to 88,897.50, 122,573.73 and 71,849.03

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Solution

The fourth proportional to 88,897.50, 122,573.73 and 71,849.03 is: 99,066.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,897.50 : 122,573.73 = 71,849.03 : x
  2. Step 2: Convert to fraction form
    88,897.50/122,573.73 = 71,849.03/x
  3. Step 3: Cross multiply
    88,897.50x = 122,573.73 × 71,849.03
  4. Step 4: Simplify right side
    88,897.50x = 8,806,802,991.11
  5. Step 5: Solve for x
    x = 8,806,802,991.11/88,897.50
  6. Step 6: Final answer
    x = 99,066.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.