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Finding the Fourth Proportional to 104,730.40, 156,922.80 and 52,026.40

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Solution

The fourth proportional to 104,730.40, 156,922.80 and 52,026.40 is: 77,953.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,730.40 : 156,922.80 = 52,026.40 : x
  2. Step 2: Convert to fraction form
    104,730.40/156,922.80 = 52,026.40/x
  3. Step 3: Cross multiply
    104,730.40x = 156,922.80 × 52,026.40
  4. Step 4: Simplify right side
    104,730.40x = 8,164,128,361.92
  5. Step 5: Solve for x
    x = 8,164,128,361.92/104,730.40
  6. Step 6: Final answer
    x = 77,953.76

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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.