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Finding the Fourth Proportional to 376,784.55, 565,176.83 and 127,466.55

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Solution

The fourth proportional to 376,784.55, 565,176.83 and 127,466.55 is: 191,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,784.55 : 565,176.83 = 127,466.55 : x
  2. Step 2: Convert to fraction form
    376,784.55/565,176.83 = 127,466.55/x
  3. Step 3: Cross multiply
    376,784.55x = 565,176.83 × 127,466.55
  4. Step 4: Simplify right side
    376,784.55x = 72,041,140,022.70
  5. Step 5: Solve for x
    x = 72,041,140,022.70/376,784.55
  6. Step 6: Final answer
    x = 191,199.83

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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.