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Finding the Fourth Proportional to 400,555.08, 600,838.71 and 130,682.01

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Solution

The fourth proportional to 400,555.08, 600,838.71 and 130,682.01 is: 196,025.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,555.08 : 600,838.71 = 130,682.01 : x
  2. Step 2: Convert to fraction form
    400,555.08/600,838.71 = 130,682.01/x
  3. Step 3: Cross multiply
    400,555.08x = 600,838.71 × 130,682.01
  4. Step 4: Simplify right side
    400,555.08x = 78,518,810,308.61
  5. Step 5: Solve for x
    x = 78,518,810,308.61/400,555.08
  6. Step 6: Final answer
    x = 196,025.00

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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.