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Finding the Fourth Proportional to 185,700.99, 256,270.40 and 105,126.45

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Solution

The fourth proportional to 185,700.99, 256,270.40 and 105,126.45 is: 145,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,700.99 : 256,270.40 = 105,126.45 : x
  2. Step 2: Convert to fraction form
    185,700.99/256,270.40 = 105,126.45/x
  3. Step 3: Cross multiply
    185,700.99x = 256,270.40 × 105,126.45
  4. Step 4: Simplify right side
    185,700.99x = 26,940,797,392.08
  5. Step 5: Solve for x
    x = 26,940,797,392.08/185,700.99
  6. Step 6: Final answer
    x = 145,076.22

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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.