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Finding the Fourth Proportional to 100,897.60, 151,346.40 and 56,610.85

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Solution

The fourth proportional to 100,897.60, 151,346.40 and 56,610.85 is: 84,916.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,897.60 : 151,346.40 = 56,610.85 : x
  2. Step 2: Convert to fraction form
    100,897.60/151,346.40 = 56,610.85/x
  3. Step 3: Cross multiply
    100,897.60x = 151,346.40 × 56,610.85
  4. Step 4: Simplify right side
    100,897.60x = 8,567,848,348.44
  5. Step 5: Solve for x
    x = 8,567,848,348.44/100,897.60
  6. Step 6: Final answer
    x = 84,916.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.