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Finding the Fourth Proportional to 93,638.92, 129,212.46 and 53,349.52

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Solution

The fourth proportional to 93,638.92, 129,212.46 and 53,349.52 is: 73,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,638.92 : 129,212.46 = 53,349.52 : x
  2. Step 2: Convert to fraction form
    93,638.92/129,212.46 = 53,349.52/x
  3. Step 3: Cross multiply
    93,638.92x = 129,212.46 × 53,349.52
  4. Step 4: Simplify right side
    93,638.92x = 6,893,422,719.02
  5. Step 5: Solve for x
    x = 6,893,422,719.02/93,638.92
  6. Step 6: Final answer
    x = 73,617.07

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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.