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Finding the Fourth Proportional to 162,643.93, 243,905.22 and 55,997.76

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Solution

The fourth proportional to 162,643.93, 243,905.22 and 55,997.76 is: 83,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,643.93 : 243,905.22 = 55,997.76 : x
  2. Step 2: Convert to fraction form
    162,643.93/243,905.22 = 55,997.76/x
  3. Step 3: Cross multiply
    162,643.93x = 243,905.22 × 55,997.76
  4. Step 4: Simplify right side
    162,643.93x = 13,658,145,972.31
  5. Step 5: Solve for x
    x = 13,658,145,972.31/162,643.93
  6. Step 6: Final answer
    x = 83,975.75

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1.5x scale

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.