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Finding the Fourth Proportional to 109,493.79, 151,096.84 and 61,751.58

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Solution

The fourth proportional to 109,493.79, 151,096.84 and 61,751.58 is: 85,214.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,493.79 : 151,096.84 = 61,751.58 : x
  2. Step 2: Convert to fraction form
    109,493.79/151,096.84 = 61,751.58/x
  3. Step 3: Cross multiply
    109,493.79x = 151,096.84 × 61,751.58
  4. Step 4: Simplify right side
    109,493.79x = 9,330,468,448.63
  5. Step 5: Solve for x
    x = 9,330,468,448.63/109,493.79
  6. Step 6: Final answer
    x = 85,214.59

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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.