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Finding the Fourth Proportional to 68,100.48, 93,937.04 and 47,921.76

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Solution

The fourth proportional to 68,100.48, 93,937.04 and 47,921.76 is: 66,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,100.48 : 93,937.04 = 47,921.76 : x
  2. Step 2: Convert to fraction form
    68,100.48/93,937.04 = 47,921.76/x
  3. Step 3: Cross multiply
    68,100.48x = 93,937.04 × 47,921.76
  4. Step 4: Simplify right side
    68,100.48x = 4,501,628,285.99
  5. Step 5: Solve for x
    x = 4,501,628,285.99/68,100.48
  6. Step 6: Final answer
    x = 66,102.74

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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.