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Finding the Fourth Proportional to 162,446.55, 243,669.83 and 155,448.15

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Solution

The fourth proportional to 162,446.55, 243,669.83 and 155,448.15 is: 233,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,446.55 : 243,669.83 = 155,448.15 : x
  2. Step 2: Convert to fraction form
    162,446.55/243,669.83 = 155,448.15/x
  3. Step 3: Cross multiply
    162,446.55x = 243,669.83 × 155,448.15
  4. Step 4: Simplify right side
    162,446.55x = 37,878,023,507.07
  5. Step 5: Solve for x
    x = 37,878,023,507.07/162,446.55
  6. Step 6: Final answer
    x = 233,172.23

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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.