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Finding the Fourth Proportional to 104,894,611.60, 157,173,955.80 and 68,950,829.20

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Solution

The fourth proportional to 104,894,611.60, 157,173,955.80 and 68,950,829.20 is: 103,315,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,894,611.60 : 157,173,955.80 = 68,950,829.20 : x
  2. Step 2: Convert to fraction form
    104,894,611.60/157,173,955.80 = 68,950,829.20/x
  3. Step 3: Cross multiply
    104,894,611.60x = 157,173,955.80 × 68,950,829.20
  4. Step 4: Simplify right side
    104,894,611.60x = 10,837,274,581,054,150
  5. Step 5: Solve for x
    x = 10,837,274,581,054,150/104,894,611.60
  6. Step 6: Final answer
    x = 103,315,836.87

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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.