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Finding the Fourth Proportional to 93,737.63, 129,418.28 and 83,648.72

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Solution

The fourth proportional to 93,737.63, 129,418.28 and 83,648.72 is: 115,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,737.63 : 129,418.28 = 83,648.72 : x
  2. Step 2: Convert to fraction form
    93,737.63/129,418.28 = 83,648.72/x
  3. Step 3: Cross multiply
    93,737.63x = 129,418.28 × 83,648.72
  4. Step 4: Simplify right side
    93,737.63x = 10,825,673,466.60
  5. Step 5: Solve for x
    x = 10,825,673,466.60/93,737.63
  6. Step 6: Final answer
    x = 115,489.09

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1.5x scale

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.