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Finding the Fourth Proportional to 60,809,188.60, 91,213,782.90 and 15,370,983.10

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Solution

The fourth proportional to 60,809,188.60, 91,213,782.90 and 15,370,983.10 is: 23,056,474.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,809,188.60 : 91,213,782.90 = 15,370,983.10 : x
  2. Step 2: Convert to fraction form
    60,809,188.60/91,213,782.90 = 15,370,983.10/x
  3. Step 3: Cross multiply
    60,809,188.60x = 91,213,782.90 × 15,370,983.10
  4. Step 4: Simplify right side
    60,809,188.60x = 1,402,045,515,442,969
  5. Step 5: Solve for x
    x = 1,402,045,515,442,969/60,809,188.60
  6. Step 6: Final answer
    x = 23,056,474.65

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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.