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Finding the Fourth Proportional to 78,806,671.60, 118,210,007.40 and 44,794,447.60

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Solution

The fourth proportional to 78,806,671.60, 118,210,007.40 and 44,794,447.60 is: 67,191,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,806,671.60 : 118,210,007.40 = 44,794,447.60 : x
  2. Step 2: Convert to fraction form
    78,806,671.60/118,210,007.40 = 44,794,447.60/x
  3. Step 3: Cross multiply
    78,806,671.60x = 118,210,007.40 × 44,794,447.60
  4. Step 4: Simplify right side
    78,806,671.60x = 5,295,151,982,274,913
  5. Step 5: Solve for x
    x = 5,295,151,982,274,913/78,806,671.60
  6. Step 6: Final answer
    x = 67,191,671.40

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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.