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Finding the Fourth Proportional to 92,005.60, 137,911.20 and 52,477.60

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Solution

The fourth proportional to 92,005.60, 137,911.20 and 52,477.60 is: 78,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,005.60 : 137,911.20 = 52,477.60 : x
  2. Step 2: Convert to fraction form
    92,005.60/137,911.20 = 52,477.60/x
  3. Step 3: Cross multiply
    92,005.60x = 137,911.20 × 52,477.60
  4. Step 4: Simplify right side
    92,005.60x = 7,237,248,789.12
  5. Step 5: Solve for x
    x = 7,237,248,789.12/92,005.60
  6. Step 6: Final answer
    x = 78,660.96

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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.