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Finding the Fourth Proportional to 104,641.60, 156,962.40 and 34,511.80

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Solution

The fourth proportional to 104,641.60, 156,962.40 and 34,511.80 is: 51,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,641.60 : 156,962.40 = 34,511.80 : x
  2. Step 2: Convert to fraction form
    104,641.60/156,962.40 = 34,511.80/x
  3. Step 3: Cross multiply
    104,641.60x = 156,962.40 × 34,511.80
  4. Step 4: Simplify right side
    104,641.60x = 5,417,054,956.32
  5. Step 5: Solve for x
    x = 5,417,054,956.32/104,641.60
  6. Step 6: Final answer
    x = 51,767.70

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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.