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Finding the Fourth Proportional to 73,919,476.64, 101,978,054.72 and 42,550,019.80

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Solution

The fourth proportional to 73,919,476.64, 101,978,054.72 and 42,550,019.80 is: 58,701,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,919,476.64 : 101,978,054.72 = 42,550,019.80 : x
  2. Step 2: Convert to fraction form
    73,919,476.64/101,978,054.72 = 42,550,019.80/x
  3. Step 3: Cross multiply
    73,919,476.64x = 101,978,054.72 × 42,550,019.80
  4. Step 4: Simplify right side
    73,919,476.64x = 4,339,168,247,501,483
  5. Step 5: Solve for x
    x = 4,339,168,247,501,483/73,919,476.64
  6. Step 6: Final answer
    x = 58,701,284.76

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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.