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Finding the Fourth Proportional to 96,577, 133,276.74 and 56,318.68

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Solution

The fourth proportional to 96,577, 133,276.74 and 56,318.68 is: 77,720.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,577 : 133,276.74 = 56,318.68 : x
  2. Step 2: Convert to fraction form
    96,577/133,276.74 = 56,318.68/x
  3. Step 3: Cross multiply
    96,577x = 133,276.74 × 56,318.68
  4. Step 4: Simplify right side
    96,577x = 7,505,970,071.50
  5. Step 5: Solve for x
    x = 7,505,970,071.50/96,577
  6. Step 6: Final answer
    x = 77,720.06

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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.