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Finding the Fourth Proportional to 131,354.48, 197,051.20 and 48,242

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Solution

The fourth proportional to 131,354.48, 197,051.20 and 48,242 is: 72,370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,354.48 : 197,051.20 = 48,242 : x
  2. Step 2: Convert to fraction form
    131,354.48/197,051.20 = 48,242/x
  3. Step 3: Cross multiply
    131,354.48x = 197,051.20 × 48,242
  4. Step 4: Simplify right side
    131,354.48x = 9,506,143,990.40
  5. Step 5: Solve for x
    x = 9,506,143,990.40/131,354.48
  6. Step 6: Final answer
    x = 72,370.15

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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.