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Finding the Fourth Proportional to 99,160.90, 148,800.45 and 35,985.96

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Solution

The fourth proportional to 99,160.90, 148,800.45 and 35,985.96 is: 54,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,160.90 : 148,800.45 = 35,985.96 : x
  2. Step 2: Convert to fraction form
    99,160.90/148,800.45 = 35,985.96/x
  3. Step 3: Cross multiply
    99,160.90x = 148,800.45 × 35,985.96
  4. Step 4: Simplify right side
    99,160.90x = 5,354,727,041.68
  5. Step 5: Solve for x
    x = 5,354,727,041.68/99,160.90
  6. Step 6: Final answer
    x = 54,000.39

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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.