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Finding the Fourth Proportional to 104,492.48, 156,689.30 and 40,480.61

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Solution

The fourth proportional to 104,492.48, 156,689.30 and 40,480.61 is: 60,701.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,492.48 : 156,689.30 = 40,480.61 : x
  2. Step 2: Convert to fraction form
    104,492.48/156,689.30 = 40,480.61/x
  3. Step 3: Cross multiply
    104,492.48x = 156,689.30 × 40,480.61
  4. Step 4: Simplify right side
    104,492.48x = 6,342,877,762.23
  5. Step 5: Solve for x
    x = 6,342,877,762.23/104,492.48
  6. Step 6: Final answer
    x = 60,701.77

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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.