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Finding the Fourth Proportional to 89,878.52, 134,817.78 and 30,684.44

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Solution

The fourth proportional to 89,878.52, 134,817.78 and 30,684.44 is: 46,026.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,878.52 : 134,817.78 = 30,684.44 : x
  2. Step 2: Convert to fraction form
    89,878.52/134,817.78 = 30,684.44/x
  3. Step 3: Cross multiply
    89,878.52x = 134,817.78 × 30,684.44
  4. Step 4: Simplify right side
    89,878.52x = 4,136,808,081.34
  5. Step 5: Solve for x
    x = 4,136,808,081.34/89,878.52
  6. Step 6: Final answer
    x = 46,026.66

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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.