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Finding the Fourth Proportional to 261,373.23, 392,059.44 and 74,384.73

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Solution

The fourth proportional to 261,373.23, 392,059.44 and 74,384.73 is: 111,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,373.23 : 392,059.44 = 74,384.73 : x
  2. Step 2: Convert to fraction form
    261,373.23/392,059.44 = 74,384.73/x
  3. Step 3: Cross multiply
    261,373.23x = 392,059.44 × 74,384.73
  4. Step 4: Simplify right side
    261,373.23x = 29,163,235,588.35
  5. Step 5: Solve for x
    x = 29,163,235,588.35/261,373.23
  6. Step 6: Final answer
    x = 111,576.98

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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.