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Finding the Fourth Proportional to 106,625.54, 147,140.48 and 68,345.76

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Solution

The fourth proportional to 106,625.54, 147,140.48 and 68,345.76 is: 94,315.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,625.54 : 147,140.48 = 68,345.76 : x
  2. Step 2: Convert to fraction form
    106,625.54/147,140.48 = 68,345.76/x
  3. Step 3: Cross multiply
    106,625.54x = 147,140.48 × 68,345.76
  4. Step 4: Simplify right side
    106,625.54x = 10,056,427,932.36
  5. Step 5: Solve for x
    x = 10,056,427,932.36/106,625.54
  6. Step 6: Final answer
    x = 94,315.38

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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.