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Finding the Fourth Proportional to 157,204.94, 216,946.72 and 85,588.89

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Solution

The fourth proportional to 157,204.94, 216,946.72 and 85,588.89 is: 118,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,204.94 : 216,946.72 = 85,588.89 : x
  2. Step 2: Convert to fraction form
    157,204.94/216,946.72 = 85,588.89/x
  3. Step 3: Cross multiply
    157,204.94x = 216,946.72 × 85,588.89
  4. Step 4: Simplify right side
    157,204.94x = 18,568,228,801.54
  5. Step 5: Solve for x
    x = 18,568,228,801.54/157,204.94
  6. Step 6: Final answer
    x = 118,114.79

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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.