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Finding the Fourth Proportional to 288,070.60, 432,170.70 and 88,400.20

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Solution

The fourth proportional to 288,070.60, 432,170.70 and 88,400.20 is: 132,620.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,070.60 : 432,170.70 = 88,400.20 : x
  2. Step 2: Convert to fraction form
    288,070.60/432,170.70 = 88,400.20/x
  3. Step 3: Cross multiply
    288,070.60x = 432,170.70 × 88,400.20
  4. Step 4: Simplify right side
    288,070.60x = 38,203,976,314.14
  5. Step 5: Solve for x
    x = 38,203,976,314.14/288,070.60
  6. Step 6: Final answer
    x = 132,620.19

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