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Finding the Fourth Proportional to 157,099.68, 216,801.44 and 85,483.62

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Solution

The fourth proportional to 157,099.68, 216,801.44 and 85,483.62 is: 117,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,099.68 : 216,801.44 = 85,483.62 : x
  2. Step 2: Convert to fraction form
    157,099.68/216,801.44 = 85,483.62/x
  3. Step 3: Cross multiply
    157,099.68x = 216,801.44 × 85,483.62
  4. Step 4: Simplify right side
    157,099.68x = 18,532,971,912.41
  5. Step 5: Solve for x
    x = 18,532,971,912.41/157,099.68
  6. Step 6: Final answer
    x = 117,969.51

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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.