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Finding the Fourth Proportional to 354,258.75, 531,386.15 and 88,019.15

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Solution

The fourth proportional to 354,258.75, 531,386.15 and 88,019.15 is: 132,028.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,258.75 : 531,386.15 = 88,019.15 : x
  2. Step 2: Convert to fraction form
    354,258.75/531,386.15 = 88,019.15/x
  3. Step 3: Cross multiply
    354,258.75x = 531,386.15 × 88,019.15
  4. Step 4: Simplify right side
    354,258.75x = 46,772,154,147.75
  5. Step 5: Solve for x
    x = 46,772,154,147.75/354,258.75
  6. Step 6: Final answer
    x = 132,028.23

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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.