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Finding the Fourth Proportional to 78,894,004.45, 118,341,006.68 and 78,894,004.45

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Solution

The fourth proportional to 78,894,004.45, 118,341,006.68 and 78,894,004.45 is: 118,341,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,004.45 : 118,341,006.68 = 78,894,004.45 : x
  2. Step 2: Convert to fraction form
    78,894,004.45/118,341,006.68 = 78,894,004.45/x
  3. Step 3: Cross multiply
    78,894,004.45x = 118,341,006.68 × 78,894,004.45
  4. Step 4: Simplify right side
    78,894,004.45x = 9,336,395,907,234,930
  5. Step 5: Solve for x
    x = 9,336,395,907,234,930/78,894,004.45
  6. Step 6: Final answer
    x = 118,341,006.68

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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.