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Finding the Fourth Proportional to 66,374.60, 91,596.59 and 36,159.86

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Solution

The fourth proportional to 66,374.60, 91,596.59 and 36,159.86 is: 49,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,374.60 : 91,596.59 = 36,159.86 : x
  2. Step 2: Convert to fraction form
    66,374.60/91,596.59 = 36,159.86/x
  3. Step 3: Cross multiply
    66,374.60x = 91,596.59 × 36,159.86
  4. Step 4: Simplify right side
    66,374.60x = 3,312,119,919.07
  5. Step 5: Solve for x
    x = 3,312,119,919.07/66,374.60
  6. Step 6: Final answer
    x = 49,900.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.