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Finding the Fourth Proportional to 162,642.55, 243,903.16 and 55,996.38

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Solution

The fourth proportional to 162,642.55, 243,903.16 and 55,996.38 is: 83,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,642.55 : 243,903.16 = 55,996.38 : x
  2. Step 2: Convert to fraction form
    162,642.55/243,903.16 = 55,996.38/x
  3. Step 3: Cross multiply
    162,642.55x = 243,903.16 × 55,996.38
  4. Step 4: Simplify right side
    162,642.55x = 13,657,694,700.21
  5. Step 5: Solve for x
    x = 13,657,694,700.21/162,642.55
  6. Step 6: Final answer
    x = 83,973.69

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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.