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Finding the Fourth Proportional to 238,173.22, 358,685.62 and 216,915.58

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Solution

The fourth proportional to 238,173.22, 358,685.62 and 216,915.58 is: 326,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,173.22 : 358,685.62 = 216,915.58 : x
  2. Step 2: Convert to fraction form
    238,173.22/358,685.62 = 216,915.58/x
  3. Step 3: Cross multiply
    238,173.22x = 358,685.62 × 216,915.58
  4. Step 4: Simplify right side
    238,173.22x = 77,804,499,299.96
  5. Step 5: Solve for x
    x = 77,804,499,299.96/238,173.22
  6. Step 6: Final answer
    x = 326,671.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.