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Finding the Fourth Proportional to 103,394.64, 154,975.69 and 52,651.27

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Solution

The fourth proportional to 103,394.64, 154,975.69 and 52,651.27 is: 78,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,394.64 : 154,975.69 = 52,651.27 : x
  2. Step 2: Convert to fraction form
    103,394.64/154,975.69 = 52,651.27/x
  3. Step 3: Cross multiply
    103,394.64x = 154,975.69 × 52,651.27
  4. Step 4: Simplify right side
    103,394.64x = 8,159,666,897.63
  5. Step 5: Solve for x
    x = 8,159,666,897.63/103,394.64
  6. Step 6: Final answer
    x = 78,917.70

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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.