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Finding the Fourth Proportional to 104,912.64, 156,557.52 and 93,698.64

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Solution

The fourth proportional to 104,912.64, 156,557.52 and 93,698.64 is: 139,823.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,912.64 : 156,557.52 = 93,698.64 : x
  2. Step 2: Convert to fraction form
    104,912.64/156,557.52 = 93,698.64/x
  3. Step 3: Cross multiply
    104,912.64x = 156,557.52 × 93,698.64
  4. Step 4: Simplify right side
    104,912.64x = 14,669,226,705.77
  5. Step 5: Solve for x
    x = 14,669,226,705.77/104,912.64
  6. Step 6: Final answer
    x = 139,823.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.