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Finding the Fourth Proportional to 176,761.64, 243,936.55 and 100,283.96

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Solution

The fourth proportional to 176,761.64, 243,936.55 and 100,283.96 is: 138,394.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,761.64 : 243,936.55 = 100,283.96 : x
  2. Step 2: Convert to fraction form
    176,761.64/243,936.55 = 100,283.96/x
  3. Step 3: Cross multiply
    176,761.64x = 243,936.55 × 100,283.96
  4. Step 4: Simplify right side
    176,761.64x = 24,462,923,222.74
  5. Step 5: Solve for x
    x = 24,462,923,222.74/176,761.64
  6. Step 6: Final answer
    x = 138,394.98

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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.