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Finding the Fourth Proportional to 161,507.27, 242,242.45 and 43,187.84

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Solution

The fourth proportional to 161,507.27, 242,242.45 and 43,187.84 is: 64,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,507.27 : 242,242.45 = 43,187.84 : x
  2. Step 2: Convert to fraction form
    161,507.27/242,242.45 = 43,187.84/x
  3. Step 3: Cross multiply
    161,507.27x = 242,242.45 × 43,187.84
  4. Step 4: Simplify right side
    161,507.27x = 10,461,927,317.38
  5. Step 5: Solve for x
    x = 10,461,927,317.38/161,507.27
  6. Step 6: Final answer
    x = 64,776.82

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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.