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Finding the Fourth Proportional to 384,466.12, 576,697.08 and 156,760.84

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Solution

The fourth proportional to 384,466.12, 576,697.08 and 156,760.84 is: 235,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,466.12 : 576,697.08 = 156,760.84 : x
  2. Step 2: Convert to fraction form
    384,466.12/576,697.08 = 156,760.84/x
  3. Step 3: Cross multiply
    384,466.12x = 576,697.08 × 156,760.84
  4. Step 4: Simplify right side
    384,466.12x = 90,403,518,686.35
  5. Step 5: Solve for x
    x = 90,403,518,686.35/384,466.12
  6. Step 6: Final answer
    x = 235,140.40

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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.