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Finding the Fourth Proportional to 161,907.65, 242,842.54 and 43,569.69

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Solution

The fourth proportional to 161,907.65, 242,842.54 and 43,569.69 is: 65,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,907.65 : 242,842.54 = 43,569.69 : x
  2. Step 2: Convert to fraction form
    161,907.65/242,842.54 = 43,569.69/x
  3. Step 3: Cross multiply
    161,907.65x = 242,842.54 × 43,569.69
  4. Step 4: Simplify right side
    161,907.65x = 10,580,574,186.61
  5. Step 5: Solve for x
    x = 10,580,574,186.61/161,907.65
  6. Step 6: Final answer
    x = 65,349.44

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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.