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Finding the Fourth Proportional to 93,713.60, 129,325.08 and 51,272

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Solution

The fourth proportional to 93,713.60, 129,325.08 and 51,272 is: 70,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,713.60 : 129,325.08 = 51,272 : x
  2. Step 2: Convert to fraction form
    93,713.60/129,325.08 = 51,272/x
  3. Step 3: Cross multiply
    93,713.60x = 129,325.08 × 51,272
  4. Step 4: Simplify right side
    93,713.60x = 6,630,755,501.76
  5. Step 5: Solve for x
    x = 6,630,755,501.76/93,713.60
  6. Step 6: Final answer
    x = 70,755.53

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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.