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Finding the Fourth Proportional to 109,590.60, 151,243.02 and 61,848.12

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Solution

The fourth proportional to 109,590.60, 151,243.02 and 61,848.12 is: 85,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,590.60 : 151,243.02 = 61,848.12 : x
  2. Step 2: Convert to fraction form
    109,590.60/151,243.02 = 61,848.12/x
  3. Step 3: Cross multiply
    109,590.60x = 151,243.02 × 61,848.12
  4. Step 4: Simplify right side
    109,590.60x = 9,354,096,450.12
  5. Step 5: Solve for x
    x = 9,354,096,450.12/109,590.60
  6. Step 6: Final answer
    x = 85,354.92

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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.