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Finding the Fourth Proportional to 112,658.71, 168,927.44 and 45,156.86

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Solution

The fourth proportional to 112,658.71, 168,927.44 and 45,156.86 is: 67,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,658.71 : 168,927.44 = 45,156.86 : x
  2. Step 2: Convert to fraction form
    112,658.71/168,927.44 = 45,156.86/x
  3. Step 3: Cross multiply
    112,658.71x = 168,927.44 × 45,156.86
  4. Step 4: Simplify right side
    112,658.71x = 7,628,233,293.45
  5. Step 5: Solve for x
    x = 7,628,233,293.45/112,658.71
  6. Step 6: Final answer
    x = 67,711.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.