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Finding the Fourth Proportional to 60,697,474.40, 91,046,211.60 and 42,203,327.60

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Solution

The fourth proportional to 60,697,474.40, 91,046,211.60 and 42,203,327.60 is: 63,304,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,697,474.40 : 91,046,211.60 = 42,203,327.60 : x
  2. Step 2: Convert to fraction form
    60,697,474.40/91,046,211.60 = 42,203,327.60/x
  3. Step 3: Cross multiply
    60,697,474.40x = 91,046,211.60 × 42,203,327.60
  4. Step 4: Simplify right side
    60,697,474.40x = 3,842,453,094,893,720
  5. Step 5: Solve for x
    x = 3,842,453,094,893,720/60,697,474.40
  6. Step 6: Final answer
    x = 63,304,991.40

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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.