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Finding the Fourth Proportional to 185,681.25, 256,239.50 and 100,797.71

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Solution

The fourth proportional to 185,681.25, 256,239.50 and 100,797.71 is: 139,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,681.25 : 256,239.50 = 100,797.71 : x
  2. Step 2: Convert to fraction form
    185,681.25/256,239.50 = 100,797.71/x
  3. Step 3: Cross multiply
    185,681.25x = 256,239.50 × 100,797.71
  4. Step 4: Simplify right side
    185,681.25x = 25,828,353,026.36
  5. Step 5: Solve for x
    x = 25,828,353,026.36/185,681.25
  6. Step 6: Final answer
    x = 139,100.49

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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.