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Finding the Fourth Proportional to 157,166.36, 216,894.44 and 85,551.20

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Solution

The fourth proportional to 157,166.36, 216,894.44 and 85,551.20 is: 118,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,166.36 : 216,894.44 = 85,551.20 : x
  2. Step 2: Convert to fraction form
    157,166.36/216,894.44 = 85,551.20/x
  3. Step 3: Cross multiply
    157,166.36x = 216,894.44 × 85,551.20
  4. Step 4: Simplify right side
    157,166.36x = 18,555,579,615.33
  5. Step 5: Solve for x
    x = 18,555,579,615.33/157,166.36
  6. Step 6: Final answer
    x = 118,063.30

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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.