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Finding the Fourth Proportional to 78,894,118.40, 118,341,177.60 and 44,456,741.60

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Solution

The fourth proportional to 78,894,118.40, 118,341,177.60 and 44,456,741.60 is: 66,685,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,118.40 : 118,341,177.60 = 44,456,741.60 : x
  2. Step 2: Convert to fraction form
    78,894,118.40/118,341,177.60 = 44,456,741.60/x
  3. Step 3: Cross multiply
    78,894,118.40x = 118,341,177.60 × 44,456,741.60
  4. Step 4: Simplify right side
    78,894,118.40x = 5,261,063,153,202,908
  5. Step 5: Solve for x
    x = 5,261,063,153,202,908/78,894,118.40
  6. Step 6: Final answer
    x = 66,685,112.40

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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.