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Finding the Fourth Proportional to 325,870.60, 488,417.10 and 136,330.60

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Solution

The fourth proportional to 325,870.60, 488,417.10 and 136,330.60 is: 204,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,870.60 : 488,417.10 = 136,330.60 : x
  2. Step 2: Convert to fraction form
    325,870.60/488,417.10 = 136,330.60/x
  3. Step 3: Cross multiply
    325,870.60x = 488,417.10 × 136,330.60
  4. Step 4: Simplify right side
    325,870.60x = 66,586,196,293.26
  5. Step 5: Solve for x
    x = 66,586,196,293.26/325,870.60
  6. Step 6: Final answer
    x = 204,333.24

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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.