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Finding the Fourth Proportional to 101,174.95, 139,621.91 and 55,852.11

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Solution

The fourth proportional to 101,174.95, 139,621.91 and 55,852.11 is: 77,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,174.95 : 139,621.91 = 55,852.11 : x
  2. Step 2: Convert to fraction form
    101,174.95/139,621.91 = 55,852.11/x
  3. Step 3: Cross multiply
    101,174.95x = 139,621.91 × 55,852.11
  4. Step 4: Simplify right side
    101,174.95x = 7,798,178,153.58
  5. Step 5: Solve for x
    x = 7,798,178,153.58/101,174.95
  6. Step 6: Final answer
    x = 77,076.18

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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.