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Finding the Fourth Proportional to 196,989.48, 296,813.91 and 162,697.32

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Solution

The fourth proportional to 196,989.48, 296,813.91 and 162,697.32 is: 245,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,989.48 : 296,813.91 = 162,697.32 : x
  2. Step 2: Convert to fraction form
    196,989.48/296,813.91 = 162,697.32/x
  3. Step 3: Cross multiply
    196,989.48x = 296,813.91 × 162,697.32
  4. Step 4: Simplify right side
    196,989.48x = 48,290,827,695.72
  5. Step 5: Solve for x
    x = 48,290,827,695.72/196,989.48
  6. Step 6: Final answer
    x = 245,144.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.