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Finding the Fourth Proportional to 325,303.71, 487,974.70 and 125,625.14

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Solution

The fourth proportional to 325,303.71, 487,974.70 and 125,625.14 is: 188,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,303.71 : 487,974.70 = 125,625.14 : x
  2. Step 2: Convert to fraction form
    325,303.71/487,974.70 = 125,625.14/x
  3. Step 3: Cross multiply
    325,303.71x = 487,974.70 × 125,625.14
  4. Step 4: Simplify right side
    325,303.71x = 61,301,889,551.02
  5. Step 5: Solve for x
    x = 61,301,889,551.02/325,303.71
  6. Step 6: Final answer
    x = 188,445.10

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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.