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Finding the Fourth Proportional to 74,188.44, 102,323.55 and 63,857.77

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Solution

The fourth proportional to 74,188.44, 102,323.55 and 63,857.77 is: 88,075.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188.44 : 102,323.55 = 63,857.77 : x
  2. Step 2: Convert to fraction form
    74,188.44/102,323.55 = 63,857.77/x
  3. Step 3: Cross multiply
    74,188.44x = 102,323.55 × 63,857.77
  4. Step 4: Simplify right side
    74,188.44x = 6,534,153,721.48
  5. Step 5: Solve for x
    x = 6,534,153,721.48/74,188.44
  6. Step 6: Final answer
    x = 88,075.09

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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.