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Finding the Fourth Proportional to 185,641.77, 256,178.79 and 100,757.01

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Solution

The fourth proportional to 185,641.77, 256,178.79 and 100,757.01 is: 139,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,641.77 : 256,178.79 = 100,757.01 : x
  2. Step 2: Convert to fraction form
    185,641.77/256,178.79 = 100,757.01/x
  3. Step 3: Cross multiply
    185,641.77x = 256,178.79 × 100,757.01
  4. Step 4: Simplify right side
    185,641.77x = 25,811,808,905.82
  5. Step 5: Solve for x
    x = 25,811,808,905.82/185,641.77
  6. Step 6: Final answer
    x = 139,040.95

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1.5x scale

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.