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Finding the Fourth Proportional to 157,196.63, 216,924.55 and 85,576.91

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Solution

The fourth proportional to 157,196.63, 216,924.55 and 85,576.91 is: 118,092.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,196.63 : 216,924.55 = 85,576.91 : x
  2. Step 2: Convert to fraction form
    157,196.63/216,924.55 = 85,576.91/x
  3. Step 3: Cross multiply
    157,196.63x = 216,924.55 × 85,576.91
  4. Step 4: Simplify right side
    157,196.63x = 18,563,731,393.58
  5. Step 5: Solve for x
    x = 18,563,731,393.58/157,196.63
  6. Step 6: Final answer
    x = 118,092.42

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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.