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Finding the Fourth Proportional to 161,801.98, 242,812.32 and 56,621.86

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Solution

The fourth proportional to 161,801.98, 242,812.32 and 56,621.86 is: 84,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,801.98 : 242,812.32 = 56,621.86 : x
  2. Step 2: Convert to fraction form
    161,801.98/242,812.32 = 56,621.86/x
  3. Step 3: Cross multiply
    161,801.98x = 242,812.32 × 56,621.86
  4. Step 4: Simplify right side
    161,801.98x = 13,748,485,189.32
  5. Step 5: Solve for x
    x = 13,748,485,189.32/161,801.98
  6. Step 6: Final answer
    x = 84,971.06

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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.