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Finding the Fourth Proportional to 185,878.59, 256,504.08 and 105,304.47

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Solution

The fourth proportional to 185,878.59, 256,504.08 and 105,304.47 is: 145,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,878.59 : 256,504.08 = 105,304.47 : x
  2. Step 2: Convert to fraction form
    185,878.59/256,504.08 = 105,304.47/x
  3. Step 3: Cross multiply
    185,878.59x = 256,504.08 × 105,304.47
  4. Step 4: Simplify right side
    185,878.59x = 27,011,026,197.24
  5. Step 5: Solve for x
    x = 27,011,026,197.24/185,878.59
  6. Step 6: Final answer
    x = 145,315.42

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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.