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Finding the Fourth Proportional to 120,798.73, 166,690.02 and 70,526.89

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Solution

The fourth proportional to 120,798.73, 166,690.02 and 70,526.89 is: 97,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,798.73 : 166,690.02 = 70,526.89 : x
  2. Step 2: Convert to fraction form
    120,798.73/166,690.02 = 70,526.89/x
  3. Step 3: Cross multiply
    120,798.73x = 166,690.02 × 70,526.89
  4. Step 4: Simplify right side
    120,798.73x = 11,756,128,704.64
  5. Step 5: Solve for x
    x = 11,756,128,704.64/120,798.73
  6. Step 6: Final answer
    x = 97,319.97

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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.