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Finding the Fourth Proportional to 93,897.88, 129,580.10 and 51,455.50

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Solution

The fourth proportional to 93,897.88, 129,580.10 and 51,455.50 is: 71,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,897.88 : 129,580.10 = 51,455.50 : x
  2. Step 2: Convert to fraction form
    93,897.88/129,580.10 = 51,455.50/x
  3. Step 3: Cross multiply
    93,897.88x = 129,580.10 × 51,455.50
  4. Step 4: Simplify right side
    93,897.88x = 6,667,608,578.27
  5. Step 5: Solve for x
    x = 6,667,608,578.27/93,897.88
  6. Step 6: Final answer
    x = 71,009.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.