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Finding the Fourth Proportional to 85,841.76, 118,468.90 and 48,123.30

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Solution

The fourth proportional to 85,841.76, 118,468.90 and 48,123.30 is: 66,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,841.76 : 118,468.90 = 48,123.30 : x
  2. Step 2: Convert to fraction form
    85,841.76/118,468.90 = 48,123.30/x
  3. Step 3: Cross multiply
    85,841.76x = 118,468.90 × 48,123.30
  4. Step 4: Simplify right side
    85,841.76x = 5,701,114,415.37
  5. Step 5: Solve for x
    x = 5,701,114,415.37/85,841.76
  6. Step 6: Final answer
    x = 66,414.23

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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.