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Finding the Fourth Proportional to 106,953.91, 147,611.84 and 61,623.20

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Solution

The fourth proportional to 106,953.91, 147,611.84 and 61,623.20 is: 85,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,953.91 : 147,611.84 = 61,623.20 : x
  2. Step 2: Convert to fraction form
    106,953.91/147,611.84 = 61,623.20/x
  3. Step 3: Cross multiply
    106,953.91x = 147,611.84 × 61,623.20
  4. Step 4: Simplify right side
    106,953.91x = 9,096,313,999.60
  5. Step 5: Solve for x
    x = 9,096,313,999.60/106,953.91
  6. Step 6: Final answer
    x = 85,048.92

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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.