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Finding the Fourth Proportional to 157,175.64, 216,906.57 and 85,560.48

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Solution

The fourth proportional to 157,175.64, 216,906.57 and 85,560.48 is: 118,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,175.64 : 216,906.57 = 85,560.48 : x
  2. Step 2: Convert to fraction form
    157,175.64/216,906.57 = 85,560.48/x
  3. Step 3: Cross multiply
    157,175.64x = 216,906.57 × 85,560.48
  4. Step 4: Simplify right side
    157,175.64x = 18,558,630,244.35
  5. Step 5: Solve for x
    x = 18,558,630,244.35/157,175.64
  6. Step 6: Final answer
    x = 118,075.74

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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.