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Finding the Fourth Proportional to 185,622.43, 256,162.79 and 105,049.93

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Solution

The fourth proportional to 185,622.43, 256,162.79 and 105,049.93 is: 144,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,622.43 : 256,162.79 = 105,049.93 : x
  2. Step 2: Convert to fraction form
    185,622.43/256,162.79 = 105,049.93/x
  3. Step 3: Cross multiply
    185,622.43x = 256,162.79 × 105,049.93
  4. Step 4: Simplify right side
    185,622.43x = 26,909,883,158.10
  5. Step 5: Solve for x
    x = 26,909,883,158.10/185,622.43
  6. Step 6: Final answer
    x = 144,971.07

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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.