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Finding the Fourth Proportional to 185,701.99, 256,271.78 and 105,127.45

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Solution

The fourth proportional to 185,701.99, 256,271.78 and 105,127.45 is: 145,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,701.99 : 256,271.78 = 105,127.45 : x
  2. Step 2: Convert to fraction form
    185,701.99/256,271.78 = 105,127.45/x
  3. Step 3: Cross multiply
    185,701.99x = 256,271.78 × 105,127.45
  4. Step 4: Simplify right side
    185,701.99x = 26,941,198,738.36
  5. Step 5: Solve for x
    x = 26,941,198,738.36/185,701.99
  6. Step 6: Final answer
    x = 145,077.60

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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.