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Finding the Fourth Proportional to 103,432.16, 155,145.14 and 28,556.88

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Solution

The fourth proportional to 103,432.16, 155,145.14 and 28,556.88 is: 42,834.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.16 : 155,145.14 = 28,556.88 : x
  2. Step 2: Convert to fraction form
    103,432.16/155,145.14 = 28,556.88/x
  3. Step 3: Cross multiply
    103,432.16x = 155,145.14 × 28,556.88
  4. Step 4: Simplify right side
    103,432.16x = 4,430,460,369.84
  5. Step 5: Solve for x
    x = 4,430,460,369.84/103,432.16
  6. Step 6: Final answer
    x = 42,834.46

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