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Finding the Fourth Proportional to 157,184.58, 216,915.74 and 85,564.59

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Solution

The fourth proportional to 157,184.58, 216,915.74 and 85,564.59 is: 118,079.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,184.58 : 216,915.74 = 85,564.59 : x
  2. Step 2: Convert to fraction form
    157,184.58/216,915.74 = 85,564.59/x
  3. Step 3: Cross multiply
    157,184.58x = 216,915.74 × 85,564.59
  4. Step 4: Simplify right side
    157,184.58x = 18,560,305,437.26
  5. Step 5: Solve for x
    x = 18,560,305,437.26/157,184.58
  6. Step 6: Final answer
    x = 118,079.68

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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.