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Finding the Fourth Proportional to 185,646.80, 256,192.88 and 100,763.84

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Solution

The fourth proportional to 185,646.80, 256,192.88 and 100,763.84 is: 139,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,646.80 : 256,192.88 = 100,763.84 : x
  2. Step 2: Convert to fraction form
    185,646.80/256,192.88 = 100,763.84/x
  3. Step 3: Cross multiply
    185,646.80x = 256,192.88 × 100,763.84
  4. Step 4: Simplify right side
    185,646.80x = 25,814,978,369.46
  5. Step 5: Solve for x
    x = 25,814,978,369.46/185,646.80
  6. Step 6: Final answer
    x = 139,054.26

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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.