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Finding the Fourth Proportional to 97,365.90, 145,890.45 and 88,034.70

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Solution

The fourth proportional to 97,365.90, 145,890.45 and 88,034.70 is: 131,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,365.90 : 145,890.45 = 88,034.70 : x
  2. Step 2: Convert to fraction form
    97,365.90/145,890.45 = 88,034.70/x
  3. Step 3: Cross multiply
    97,365.90x = 145,890.45 × 88,034.70
  4. Step 4: Simplify right side
    97,365.90x = 12,843,421,998.62
  5. Step 5: Solve for x
    x = 12,843,421,998.62/97,365.90
  6. Step 6: Final answer
    x = 131,908.83

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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.