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Finding the Fourth Proportional to 145,594.84, 200,920.77 and 81,932.68

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Solution

The fourth proportional to 145,594.84, 200,920.77 and 81,932.68 is: 113,067.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,594.84 : 200,920.77 = 81,932.68 : x
  2. Step 2: Convert to fraction form
    145,594.84/200,920.77 = 81,932.68/x
  3. Step 3: Cross multiply
    145,594.84x = 200,920.77 × 81,932.68
  4. Step 4: Simplify right side
    145,594.84x = 16,461,977,153.76
  5. Step 5: Solve for x
    x = 16,461,977,153.76/145,594.84
  6. Step 6: Final answer
    x = 113,067.04

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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.