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Finding the Fourth Proportional to 376,415.55, 564,276.75 and 163,049.40

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Solution

The fourth proportional to 376,415.55, 564,276.75 and 163,049.40 is: 244,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,415.55 : 564,276.75 = 163,049.40 : x
  2. Step 2: Convert to fraction form
    376,415.55/564,276.75 = 163,049.40/x
  3. Step 3: Cross multiply
    376,415.55x = 564,276.75 × 163,049.40
  4. Step 4: Simplify right side
    376,415.55x = 92,004,985,521.45
  5. Step 5: Solve for x
    x = 92,004,985,521.45/376,415.55
  6. Step 6: Final answer
    x = 244,423.98

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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.