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Finding the Fourth Proportional to 118,222.17, 162,955.96 and 79,967.74

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Solution

The fourth proportional to 118,222.17, 162,955.96 and 79,967.74 is: 110,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,222.17 : 162,955.96 = 79,967.74 : x
  2. Step 2: Convert to fraction form
    118,222.17/162,955.96 = 79,967.74/x
  3. Step 3: Cross multiply
    118,222.17x = 162,955.96 × 79,967.74
  4. Step 4: Simplify right side
    118,222.17x = 13,031,219,840.73
  5. Step 5: Solve for x
    x = 13,031,219,840.73/118,222.17
  6. Step 6: Final answer
    x = 110,226.53

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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.