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Finding the Fourth Proportional to 325,722.60, 488,583.90 and 104,106.60

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Solution

The fourth proportional to 325,722.60, 488,583.90 and 104,106.60 is: 156,159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,722.60 : 488,583.90 = 104,106.60 : x
  2. Step 2: Convert to fraction form
    325,722.60/488,583.90 = 104,106.60/x
  3. Step 3: Cross multiply
    325,722.60x = 488,583.90 × 104,106.60
  4. Step 4: Simplify right side
    325,722.60x = 50,864,808,643.74
  5. Step 5: Solve for x
    x = 50,864,808,643.74/325,722.60
  6. Step 6: Final answer
    x = 156,159.90

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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.