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Finding the Fourth Proportional to 224,038.34, 336,123.12 and 66,271

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Solution

The fourth proportional to 224,038.34, 336,123.12 and 66,271 is: 99,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,038.34 : 336,123.12 = 66,271 : x
  2. Step 2: Convert to fraction form
    224,038.34/336,123.12 = 66,271/x
  3. Step 3: Cross multiply
    224,038.34x = 336,123.12 × 66,271
  4. Step 4: Simplify right side
    224,038.34x = 22,275,215,285.52
  5. Step 5: Solve for x
    x = 22,275,215,285.52/224,038.34
  6. Step 6: Final answer
    x = 99,425.91

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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.