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Finding the Fourth Proportional to 85,740.53, 118,311.23 and 47,494.76

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Solution

The fourth proportional to 85,740.53, 118,311.23 and 47,494.76 is: 65,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,740.53 : 118,311.23 = 47,494.76 : x
  2. Step 2: Convert to fraction form
    85,740.53/118,311.23 = 47,494.76/x
  3. Step 3: Cross multiply
    85,740.53x = 118,311.23 × 47,494.76
  4. Step 4: Simplify right side
    85,740.53x = 5,619,163,001.34
  5. Step 5: Solve for x
    x = 5,619,163,001.34/85,740.53
  6. Step 6: Final answer
    x = 65,536.84

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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.