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Finding the Fourth Proportional to 131,470.90, 197,206.35 and 36,700.90

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Solution

The fourth proportional to 131,470.90, 197,206.35 and 36,700.90 is: 55,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,470.90 : 197,206.35 = 36,700.90 : x
  2. Step 2: Convert to fraction form
    131,470.90/197,206.35 = 36,700.90/x
  3. Step 3: Cross multiply
    131,470.90x = 197,206.35 × 36,700.90
  4. Step 4: Simplify right side
    131,470.90x = 7,237,650,530.72
  5. Step 5: Solve for x
    x = 7,237,650,530.72/131,470.90
  6. Step 6: Final answer
    x = 55,051.35

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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.