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Finding the Fourth Proportional to 106,953.81, 147,531.54 and 68,700.34

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Solution

The fourth proportional to 106,953.81, 147,531.54 and 68,700.34 is: 94,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,953.81 : 147,531.54 = 68,700.34 : x
  2. Step 2: Convert to fraction form
    106,953.81/147,531.54 = 68,700.34/x
  3. Step 3: Cross multiply
    106,953.81x = 147,531.54 × 68,700.34
  4. Step 4: Simplify right side
    106,953.81x = 10,135,466,958.72
  5. Step 5: Solve for x
    x = 10,135,466,958.72/106,953.81
  6. Step 6: Final answer
    x = 94,764.90

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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.