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Finding the Fourth Proportional to 64,656.96, 96,842.88 and 49,756.20

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Solution

The fourth proportional to 64,656.96, 96,842.88 and 49,756.20 is: 74,524.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656.96 : 96,842.88 = 49,756.20 : x
  2. Step 2: Convert to fraction form
    64,656.96/96,842.88 = 49,756.20/x
  3. Step 3: Cross multiply
    64,656.96x = 96,842.88 × 49,756.20
  4. Step 4: Simplify right side
    64,656.96x = 4,818,533,705.86
  5. Step 5: Solve for x
    x = 4,818,533,705.86/64,656.96
  6. Step 6: Final answer
    x = 74,524.59

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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.