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Finding the Fourth Proportional to 85,505.01, 117,994.69 and 47,267.74

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Solution

The fourth proportional to 85,505.01, 117,994.69 and 47,267.74 is: 65,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,505.01 : 117,994.69 = 47,267.74 : x
  2. Step 2: Convert to fraction form
    85,505.01/117,994.69 = 47,267.74/x
  3. Step 3: Cross multiply
    85,505.01x = 117,994.69 × 47,267.74
  4. Step 4: Simplify right side
    85,505.01x = 5,577,342,328.30
  5. Step 5: Solve for x
    x = 5,577,342,328.30/85,505.01
  6. Step 6: Final answer
    x = 65,228.25

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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.