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Finding the Fourth Proportional to 172,152.64, 258,228.40 and 45,792.72

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Solution

The fourth proportional to 172,152.64, 258,228.40 and 45,792.72 is: 68,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,152.64 : 258,228.40 = 45,792.72 : x
  2. Step 2: Convert to fraction form
    172,152.64/258,228.40 = 45,792.72/x
  3. Step 3: Cross multiply
    172,152.64x = 258,228.40 × 45,792.72
  4. Step 4: Simplify right side
    172,152.64x = 11,824,980,817.25
  5. Step 5: Solve for x
    x = 11,824,980,817.25/172,152.64
  6. Step 6: Final answer
    x = 68,688.93

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