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Finding the Fourth Proportional to 156,889.84, 235,434.84 and 57,040.45

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Solution

The fourth proportional to 156,889.84, 235,434.84 and 57,040.45 is: 85,597.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,889.84 : 235,434.84 = 57,040.45 : x
  2. Step 2: Convert to fraction form
    156,889.84/235,434.84 = 57,040.45/x
  3. Step 3: Cross multiply
    156,889.84x = 235,434.84 × 57,040.45
  4. Step 4: Simplify right side
    156,889.84x = 13,429,309,219.28
  5. Step 5: Solve for x
    x = 13,429,309,219.28/156,889.84
  6. Step 6: Final answer
    x = 85,597.06

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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.