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Finding the Fourth Proportional to 93,122.52, 128,513.29 and 54,883.67

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Solution

The fourth proportional to 93,122.52, 128,513.29 and 54,883.67 is: 75,741.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,122.52 : 128,513.29 = 54,883.67 : x
  2. Step 2: Convert to fraction form
    93,122.52/128,513.29 = 54,883.67/x
  3. Step 3: Cross multiply
    93,122.52x = 128,513.29 × 54,883.67
  4. Step 4: Simplify right side
    93,122.52x = 7,053,280,890.63
  5. Step 5: Solve for x
    x = 7,053,280,890.63/93,122.52
  6. Step 6: Final answer
    x = 75,741.95

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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.