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Finding the Fourth Proportional to 325,706.16, 488,541.96 and 104,090.16

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Solution

The fourth proportional to 325,706.16, 488,541.96 and 104,090.16 is: 156,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,706.16 : 488,541.96 = 104,090.16 : x
  2. Step 2: Convert to fraction form
    325,706.16/488,541.96 = 104,090.16/x
  3. Step 3: Cross multiply
    325,706.16x = 488,541.96 × 104,090.16
  4. Step 4: Simplify right side
    325,706.16x = 50,852,410,783.11
  5. Step 5: Solve for x
    x = 50,852,410,783.11/325,706.16
  6. Step 6: Final answer
    x = 156,129.72

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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.