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Finding the Fourth Proportional to 352,130.33, 528,186.08 and 99,428.15

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Solution

The fourth proportional to 352,130.33, 528,186.08 and 99,428.15 is: 149,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,130.33 : 528,186.08 = 99,428.15 : x
  2. Step 2: Convert to fraction form
    352,130.33/528,186.08 = 99,428.15/x
  3. Step 3: Cross multiply
    352,130.33x = 528,186.08 × 99,428.15
  4. Step 4: Simplify right side
    352,130.33x = 52,516,566,359.19
  5. Step 5: Solve for x
    x = 52,516,566,359.19/352,130.33
  6. Step 6: Final answer
    x = 149,139.57

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