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Finding the Fourth Proportional to 91,594.80, 137,155.58 and 63,219.29

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Solution

The fourth proportional to 91,594.80, 137,155.58 and 63,219.29 is: 94,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,594.80 : 137,155.58 = 63,219.29 : x
  2. Step 2: Convert to fraction form
    91,594.80/137,155.58 = 63,219.29/x
  3. Step 3: Cross multiply
    91,594.80x = 137,155.58 × 63,219.29
  4. Step 4: Simplify right side
    91,594.80x = 8,670,877,622.34
  5. Step 5: Solve for x
    x = 8,670,877,622.34/91,594.80
  6. Step 6: Final answer
    x = 94,665.61

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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.