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Finding the Fourth Proportional to 185,646.81, 256,192.89 and 100,763.91

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Solution

The fourth proportional to 185,646.81, 256,192.89 and 100,763.91 is: 139,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,646.81 : 256,192.89 = 100,763.91 : x
  2. Step 2: Convert to fraction form
    185,646.81/256,192.89 = 100,763.91/x
  3. Step 3: Cross multiply
    185,646.81x = 256,192.89 × 100,763.91
  4. Step 4: Simplify right side
    185,646.81x = 25,814,997,310.60
  5. Step 5: Solve for x
    x = 25,814,997,310.60/185,646.81
  6. Step 6: Final answer
    x = 139,054.35

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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.