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Finding the Fourth Proportional to 162,697.31, 243,988.77 and 48,811.16

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Solution

The fourth proportional to 162,697.31, 243,988.77 and 48,811.16 is: 73,199.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,697.31 : 243,988.77 = 48,811.16 : x
  2. Step 2: Convert to fraction form
    162,697.31/243,988.77 = 48,811.16/x
  3. Step 3: Cross multiply
    162,697.31x = 243,988.77 × 48,811.16
  4. Step 4: Simplify right side
    162,697.31x = 11,909,374,890.67
  5. Step 5: Solve for x
    x = 11,909,374,890.67/162,697.31
  6. Step 6: Final answer
    x = 73,199.58

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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.