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Finding the Fourth Proportional to 185,970.94, 256,640.81 and 101,088

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Solution

The fourth proportional to 185,970.94, 256,640.81 and 101,088 is: 139,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,970.94 : 256,640.81 = 101,088 : x
  2. Step 2: Convert to fraction form
    185,970.94/256,640.81 = 101,088/x
  3. Step 3: Cross multiply
    185,970.94x = 256,640.81 × 101,088
  4. Step 4: Simplify right side
    185,970.94x = 25,943,305,695.84
  5. Step 5: Solve for x
    x = 25,943,305,695.84/185,970.94
  6. Step 6: Final answer
    x = 139,501.94

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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.