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Finding the Fourth Proportional to 92,887.94, 139,273.59 and 61,263.92

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Solution

The fourth proportional to 92,887.94, 139,273.59 and 61,263.92 is: 91,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,887.94 : 139,273.59 = 61,263.92 : x
  2. Step 2: Convert to fraction form
    92,887.94/139,273.59 = 61,263.92/x
  3. Step 3: Cross multiply
    92,887.94x = 139,273.59 × 61,263.92
  4. Step 4: Simplify right side
    92,887.94x = 8,532,446,075.87
  5. Step 5: Solve for x
    x = 8,532,446,075.87/92,887.94
  6. Step 6: Final answer
    x = 91,857.42

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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.