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Finding the Fourth Proportional to 68,367.54, 94,320.90 and 42,829.46

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Solution

The fourth proportional to 68,367.54, 94,320.90 and 42,829.46 is: 59,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,367.54 : 94,320.90 = 42,829.46 : x
  2. Step 2: Convert to fraction form
    68,367.54/94,320.90 = 42,829.46/x
  3. Step 3: Cross multiply
    68,367.54x = 94,320.90 × 42,829.46
  4. Step 4: Simplify right side
    68,367.54x = 4,039,713,213.71
  5. Step 5: Solve for x
    x = 4,039,713,213.71/68,367.54
  6. Step 6: Final answer
    x = 59,088.18

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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.