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Finding the Fourth Proportional to 60,692,980.80, 91,007,978.40 and 22,334,750.40

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Solution

The fourth proportional to 60,692,980.80, 91,007,978.40 and 22,334,750.40 is: 33,490,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,692,980.80 : 91,007,978.40 = 22,334,750.40 : x
  2. Step 2: Convert to fraction form
    60,692,980.80/91,007,978.40 = 22,334,750.40/x
  3. Step 3: Cross multiply
    60,692,980.80x = 91,007,978.40 × 22,334,750.40
  4. Step 4: Simplify right side
    60,692,980.80x = 2,032,640,481,972,591.25
  5. Step 5: Solve for x
    x = 2,032,640,481,972,591.25/60,692,980.80
  6. Step 6: Final answer
    x = 33,490,536.39

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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.