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Finding the Fourth Proportional to 104,461.60, 156,794.80 and 51,930.40

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Solution

The fourth proportional to 104,461.60, 156,794.80 and 51,930.40 is: 77,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,461.60 : 156,794.80 = 51,930.40 : x
  2. Step 2: Convert to fraction form
    104,461.60/156,794.80 = 51,930.40/x
  3. Step 3: Cross multiply
    104,461.60x = 156,794.80 × 51,930.40
  4. Step 4: Simplify right side
    104,461.60x = 8,142,416,681.92
  5. Step 5: Solve for x
    x = 8,142,416,681.92/104,461.60
  6. Step 6: Final answer
    x = 77,946.51

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1.5x scale

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.