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Finding the Fourth Proportional to 61,145.55, 85,800.60 and 61,145.55

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Solution

The fourth proportional to 61,145.55, 85,800.60 and 61,145.55 is: 85,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,145.55 : 85,800.60 = 61,145.55 : x
  2. Step 2: Convert to fraction form
    61,145.55/85,800.60 = 61,145.55/x
  3. Step 3: Cross multiply
    61,145.55x = 85,800.60 × 61,145.55
  4. Step 4: Simplify right side
    61,145.55x = 5,246,324,877.33
  5. Step 5: Solve for x
    x = 5,246,324,877.33/61,145.55
  6. Step 6: Final answer
    x = 85,800.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.