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Finding the Fourth Proportional to 252,915, 379,394.37 and 65,926.50

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Solution

The fourth proportional to 252,915, 379,394.37 and 65,926.50 is: 98,895.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,915 : 379,394.37 = 65,926.50 : x
  2. Step 2: Convert to fraction form
    252,915/379,394.37 = 65,926.50/x
  3. Step 3: Cross multiply
    252,915x = 379,394.37 × 65,926.50
  4. Step 4: Simplify right side
    252,915x = 25,012,142,933.81
  5. Step 5: Solve for x
    x = 25,012,142,933.81/252,915
  6. Step 6: Final answer
    x = 98,895.45

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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.