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Finding the Fourth Proportional to 60,556.80, 90,851.40 and 43,060.80

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Solution

The fourth proportional to 60,556.80, 90,851.40 and 43,060.80 is: 64,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,556.80 : 90,851.40 = 43,060.80 : x
  2. Step 2: Convert to fraction form
    60,556.80/90,851.40 = 43,060.80/x
  3. Step 3: Cross multiply
    60,556.80x = 90,851.40 × 43,060.80
  4. Step 4: Simplify right side
    60,556.80x = 3,912,133,965.12
  5. Step 5: Solve for x
    x = 3,912,133,965.12/60,556.80
  6. Step 6: Final answer
    x = 64,602.72

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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.