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Finding the Fourth Proportional to 230,786,287.20, 346,179,430.80 and 77,437,346.40

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Solution

The fourth proportional to 230,786,287.20, 346,179,430.80 and 77,437,346.40 is: 116,156,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,786,287.20 : 346,179,430.80 = 77,437,346.40 : x
  2. Step 2: Convert to fraction form
    230,786,287.20/346,179,430.80 = 77,437,346.40/x
  3. Step 3: Cross multiply
    230,786,287.20x = 346,179,430.80 × 77,437,346.40
  4. Step 4: Simplify right side
    230,786,287.20x = 26,807,216,499,414,432
  5. Step 5: Solve for x
    x = 26,807,216,499,414,432/230,786,287.20
  6. Step 6: Final answer
    x = 116,156,019.60

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