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Finding the Fourth Proportional to 101,270.49, 139,750.57 and 55,941.16

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Solution

The fourth proportional to 101,270.49, 139,750.57 and 55,941.16 is: 77,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,270.49 : 139,750.57 = 55,941.16 : x
  2. Step 2: Convert to fraction form
    101,270.49/139,750.57 = 55,941.16/x
  3. Step 3: Cross multiply
    101,270.49x = 139,750.57 × 55,941.16
  4. Step 4: Simplify right side
    101,270.49x = 7,817,808,856.61
  5. Step 5: Solve for x
    x = 7,817,808,856.61/101,270.49
  6. Step 6: Final answer
    x = 77,197.31

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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.