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Finding the Fourth Proportional to 104,915.64, 156,561.99 and 93,701.64

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Solution

The fourth proportional to 104,915.64, 156,561.99 and 93,701.64 is: 139,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,915.64 : 156,561.99 = 93,701.64 : x
  2. Step 2: Convert to fraction form
    104,915.64/156,561.99 = 93,701.64/x
  3. Step 3: Cross multiply
    104,915.64x = 156,561.99 × 93,701.64
  4. Step 4: Simplify right side
    104,915.64x = 14,670,115,224.66
  5. Step 5: Solve for x
    x = 14,670,115,224.66/104,915.64
  6. Step 6: Final answer
    x = 139,827.72

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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.