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Finding the Fourth Proportional to 355,051.56, 532,393.74 and 130,354.32

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Solution

The fourth proportional to 355,051.56, 532,393.74 and 130,354.32 is: 195,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,051.56 : 532,393.74 = 130,354.32 : x
  2. Step 2: Convert to fraction form
    355,051.56/532,393.74 = 130,354.32/x
  3. Step 3: Cross multiply
    355,051.56x = 532,393.74 × 130,354.32
  4. Step 4: Simplify right side
    355,051.56x = 69,399,823,949.96
  5. Step 5: Solve for x
    x = 69,399,823,949.96/355,051.56
  6. Step 6: Final answer
    x = 195,464.07

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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.