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Finding the Fourth Proportional to 92,907.88, 139,541.10 and 79,610.92

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Solution

The fourth proportional to 92,907.88, 139,541.10 and 79,610.92 is: 119,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,907.88 : 139,541.10 = 79,610.92 : x
  2. Step 2: Convert to fraction form
    92,907.88/139,541.10 = 79,610.92/x
  3. Step 3: Cross multiply
    92,907.88x = 139,541.10 × 79,610.92
  4. Step 4: Simplify right side
    92,907.88x = 11,108,995,348.81
  5. Step 5: Solve for x
    x = 11,108,995,348.81/92,907.88
  6. Step 6: Final answer
    x = 119,570.00

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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.