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Finding the Fourth Proportional to 218,790.16, 301,953.16 and 133,963.60

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Solution

The fourth proportional to 218,790.16, 301,953.16 and 133,963.60 is: 184,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,790.16 : 301,953.16 = 133,963.60 : x
  2. Step 2: Convert to fraction form
    218,790.16/301,953.16 = 133,963.60/x
  3. Step 3: Cross multiply
    218,790.16x = 301,953.16 × 133,963.60
  4. Step 4: Simplify right side
    218,790.16x = 40,450,732,344.98
  5. Step 5: Solve for x
    x = 40,450,732,344.98/218,790.16
  6. Step 6: Final answer
    x = 184,883.69

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1.5x scale

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.