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Finding the Fourth Proportional to 84,920,597.60, 127,191,939.60 and 69,804,053.60

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Solution

The fourth proportional to 84,920,597.60, 127,191,939.60 and 69,804,053.60 is: 104,550,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,920,597.60 : 127,191,939.60 = 69,804,053.60 : x
  2. Step 2: Convert to fraction form
    84,920,597.60/127,191,939.60 = 69,804,053.60/x
  3. Step 3: Cross multiply
    84,920,597.60x = 127,191,939.60 × 69,804,053.60
  4. Step 4: Simplify right side
    84,920,597.60x = 8,878,512,969,326,361
  5. Step 5: Solve for x
    x = 8,878,512,969,326,361/84,920,597.60
  6. Step 6: Final answer
    x = 104,550,759.42

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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.