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Finding the Fourth Proportional to 153,407.18, 211,651.16 and 89,699.88

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Solution

The fourth proportional to 153,407.18, 211,651.16 and 89,699.88 is: 123,756.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,407.18 : 211,651.16 = 89,699.88 : x
  2. Step 2: Convert to fraction form
    153,407.18/211,651.16 = 89,699.88/x
  3. Step 3: Cross multiply
    153,407.18x = 211,651.16 × 89,699.88
  4. Step 4: Simplify right side
    153,407.18x = 18,985,083,653.86
  5. Step 5: Solve for x
    x = 18,985,083,653.86/153,407.18
  6. Step 6: Final answer
    x = 123,756.16

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