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Finding the Fourth Proportional to 68,818.61, 103,158.21 and 46,634.23

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Solution

The fourth proportional to 68,818.61, 103,158.21 and 46,634.23 is: 69,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,818.61 : 103,158.21 = 46,634.23 : x
  2. Step 2: Convert to fraction form
    68,818.61/103,158.21 = 46,634.23/x
  3. Step 3: Cross multiply
    68,818.61x = 103,158.21 × 46,634.23
  4. Step 4: Simplify right side
    68,818.61x = 4,810,703,733.04
  5. Step 5: Solve for x
    x = 4,810,703,733.04/68,818.61
  6. Step 6: Final answer
    x = 69,904.11

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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.