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Finding the Fourth Proportional to 152,989,959.60, 211,119,987.60 and 83,373,837.30

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Solution

The fourth proportional to 152,989,959.60, 211,119,987.60 and 83,373,837.30 is: 115,052,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,989,959.60 : 211,119,987.60 = 83,373,837.30 : x
  2. Step 2: Convert to fraction form
    152,989,959.60/211,119,987.60 = 83,373,837.30/x
  3. Step 3: Cross multiply
    152,989,959.60x = 211,119,987.60 × 83,373,837.30
  4. Step 4: Simplify right side
    152,989,959.60x = 17,601,883,496,940,416
  5. Step 5: Solve for x
    x = 17,601,883,496,940,416/152,989,959.60
  6. Step 6: Final answer
    x = 115,052,540.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.