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Finding the Fourth Proportional to 117,008,679.60, 175,513,019.40 and 56,542,503.60

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Solution

The fourth proportional to 117,008,679.60, 175,513,019.40 and 56,542,503.60 is: 84,813,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008,679.60 : 175,513,019.40 = 56,542,503.60 : x
  2. Step 2: Convert to fraction form
    117,008,679.60/175,513,019.40 = 56,542,503.60/x
  3. Step 3: Cross multiply
    117,008,679.60x = 175,513,019.40 × 56,542,503.60
  4. Step 4: Simplify right side
    117,008,679.60x = 9,923,945,531,271,370
  5. Step 5: Solve for x
    x = 9,923,945,531,271,370/117,008,679.60
  6. Step 6: Final answer
    x = 84,813,755.40

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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.