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Finding the Fourth Proportional to 5,752,492.88, 7,938,430.92 and 3,174,171.60

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Solution

The fourth proportional to 5,752,492.88, 7,938,430.92 and 3,174,171.60 is: 4,380,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,752,492.88 : 7,938,430.92 = 3,174,171.60 : x
  2. Step 2: Convert to fraction form
    5,752,492.88/7,938,430.92 = 3,174,171.60/x
  3. Step 3: Cross multiply
    5,752,492.88x = 7,938,430.92 × 3,174,171.60
  4. Step 4: Simplify right side
    5,752,492.88x = 25,197,941,974,825.87
  5. Step 5: Solve for x
    x = 25,197,941,974,825.87/5,752,492.88
  6. Step 6: Final answer
    x = 4,380,351.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.