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Finding the Fourth Proportional to 104,976,273.60, 157,464,410.40 and 66,681,028.80

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Solution

The fourth proportional to 104,976,273.60, 157,464,410.40 and 66,681,028.80 is: 100,021,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,273.60 : 157,464,410.40 = 66,681,028.80 : x
  2. Step 2: Convert to fraction form
    104,976,273.60/157,464,410.40 = 66,681,028.80/x
  3. Step 3: Cross multiply
    104,976,273.60x = 157,464,410.40 × 66,681,028.80
  4. Step 4: Simplify right side
    104,976,273.60x = 10,499,888,884,857,420
  5. Step 5: Solve for x
    x = 10,499,888,884,857,420/104,976,273.60
  6. Step 6: Final answer
    x = 100,021,543.20

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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.