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Finding the Fourth Proportional to 350,470.40, 525,705.60 and 125,938.40

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Solution

The fourth proportional to 350,470.40, 525,705.60 and 125,938.40 is: 188,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,470.40 : 525,705.60 = 125,938.40 : x
  2. Step 2: Convert to fraction form
    350,470.40/525,705.60 = 125,938.40/x
  3. Step 3: Cross multiply
    350,470.40x = 525,705.60 × 125,938.40
  4. Step 4: Simplify right side
    350,470.40x = 66,206,522,135.04
  5. Step 5: Solve for x
    x = 66,206,522,135.04/350,470.40
  6. Step 6: Final answer
    x = 188,907.60

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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.