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Finding the Fourth Proportional to 203,970.66, 306,011.35 and 61,810.20

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Solution

The fourth proportional to 203,970.66, 306,011.35 and 61,810.20 is: 92,732.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,970.66 : 306,011.35 = 61,810.20 : x
  2. Step 2: Convert to fraction form
    203,970.66/306,011.35 = 61,810.20/x
  3. Step 3: Cross multiply
    203,970.66x = 306,011.35 × 61,810.20
  4. Step 4: Simplify right side
    203,970.66x = 18,914,622,745.77
  5. Step 5: Solve for x
    x = 18,914,622,745.77/203,970.66
  6. Step 6: Final answer
    x = 92,732.08

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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.