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Finding the Fourth Proportional to 66,154, 91,292.52 and 36,346

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Solution

The fourth proportional to 66,154, 91,292.52 and 36,346 is: 50,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,154 : 91,292.52 = 36,346 : x
  2. Step 2: Convert to fraction form
    66,154/91,292.52 = 36,346/x
  3. Step 3: Cross multiply
    66,154x = 91,292.52 × 36,346
  4. Step 4: Simplify right side
    66,154x = 3,318,117,931.92
  5. Step 5: Solve for x
    x = 3,318,117,931.92/66,154
  6. Step 6: Final answer
    x = 50,157.48

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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.