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Finding the Fourth Proportional to 93,945, 129,712.14 and 60,469.32

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Solution

The fourth proportional to 93,945, 129,712.14 and 60,469.32 is: 83,491.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,945 : 129,712.14 = 60,469.32 : x
  2. Step 2: Convert to fraction form
    93,945/129,712.14 = 60,469.32/x
  3. Step 3: Cross multiply
    93,945x = 129,712.14 × 60,469.32
  4. Step 4: Simplify right side
    93,945x = 7,843,604,901.54
  5. Step 5: Solve for x
    x = 7,843,604,901.54/93,945
  6. Step 6: Final answer
    x = 83,491.46

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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.