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Finding the Fourth Proportional to 76,182.78, 114,230.40 and 40,600.30

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Solution

The fourth proportional to 76,182.78, 114,230.40 and 40,600.30 is: 60,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,182.78 : 114,230.40 = 40,600.30 : x
  2. Step 2: Convert to fraction form
    76,182.78/114,230.40 = 40,600.30/x
  3. Step 3: Cross multiply
    76,182.78x = 114,230.40 × 40,600.30
  4. Step 4: Simplify right side
    76,182.78x = 4,637,788,509.12
  5. Step 5: Solve for x
    x = 4,637,788,509.12/76,182.78
  6. Step 6: Final answer
    x = 60,877.12

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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.