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Finding the Fourth Proportional to 118,285.94, 176,523.70 and 105,664.22

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Solution

The fourth proportional to 118,285.94, 176,523.70 and 105,664.22 is: 157,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,285.94 : 176,523.70 = 105,664.22 : x
  2. Step 2: Convert to fraction form
    118,285.94/176,523.70 = 105,664.22/x
  3. Step 3: Cross multiply
    118,285.94x = 176,523.70 × 105,664.22
  4. Step 4: Simplify right side
    118,285.94x = 18,652,238,321.48
  5. Step 5: Solve for x
    x = 18,652,238,321.48/118,285.94
  6. Step 6: Final answer
    x = 157,687.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.