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Finding the Fourth Proportional to 93,187.92, 128,601.63 and 50,748.78

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Solution

The fourth proportional to 93,187.92, 128,601.63 and 50,748.78 is: 70,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,187.92 : 128,601.63 = 50,748.78 : x
  2. Step 2: Convert to fraction form
    93,187.92/128,601.63 = 50,748.78/x
  3. Step 3: Cross multiply
    93,187.92x = 128,601.63 × 50,748.78
  4. Step 4: Simplify right side
    93,187.92x = 6,526,375,828.51
  5. Step 5: Solve for x
    x = 6,526,375,828.51/93,187.92
  6. Step 6: Final answer
    x = 70,034.57

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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.