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Finding the Fourth Proportional to 253,740.69, 380,610.89 and 236,925.59

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Solution

The fourth proportional to 253,740.69, 380,610.89 and 236,925.59 is: 355,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,740.69 : 380,610.89 = 236,925.59 : x
  2. Step 2: Convert to fraction form
    253,740.69/380,610.89 = 236,925.59/x
  3. Step 3: Cross multiply
    253,740.69x = 380,610.89 × 236,925.59
  4. Step 4: Simplify right side
    253,740.69x = 90,176,459,673.68
  5. Step 5: Solve for x
    x = 90,176,459,673.68/253,740.69
  6. Step 6: Final answer
    x = 355,388.25

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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.