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Finding the Fourth Proportional to 464,085.10, 696,128.20 and 127,128.65

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Solution

The fourth proportional to 464,085.10, 696,128.20 and 127,128.65 is: 190,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,085.10 : 696,128.20 = 127,128.65 : x
  2. Step 2: Convert to fraction form
    464,085.10/696,128.20 = 127,128.65/x
  3. Step 3: Cross multiply
    464,085.10x = 696,128.20 × 127,128.65
  4. Step 4: Simplify right side
    464,085.10x = 88,497,838,292.93
  5. Step 5: Solve for x
    x = 88,497,838,292.93/464,085.10
  6. Step 6: Final answer
    x = 190,693.13

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