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Finding the Fourth Proportional to 452,611.30, 678,916.84 and 115,652.58

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Solution

The fourth proportional to 452,611.30, 678,916.84 and 115,652.58 is: 173,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,611.30 : 678,916.84 = 115,652.58 : x
  2. Step 2: Convert to fraction form
    452,611.30/678,916.84 = 115,652.58/x
  3. Step 3: Cross multiply
    452,611.30x = 678,916.84 × 115,652.58
  4. Step 4: Simplify right side
    452,611.30x = 78,518,484,151.45
  5. Step 5: Solve for x
    x = 78,518,484,151.45/452,611.30
  6. Step 6: Final answer
    x = 173,478.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.