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Finding the Fourth Proportional to 185,957.46, 256,628.94 and 105,384.12

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Solution

The fourth proportional to 185,957.46, 256,628.94 and 105,384.12 is: 145,434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,957.46 : 256,628.94 = 105,384.12 : x
  2. Step 2: Convert to fraction form
    185,957.46/256,628.94 = 105,384.12/x
  3. Step 3: Cross multiply
    185,957.46x = 256,628.94 × 105,384.12
  4. Step 4: Simplify right side
    185,957.46x = 27,044,615,008.43
  5. Step 5: Solve for x
    x = 27,044,615,008.43/185,957.46
  6. Step 6: Final answer
    x = 145,434.42

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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.