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Finding the Fourth Proportional to 76,302.54, 105,298.75 and 42,312.48

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Solution

The fourth proportional to 76,302.54, 105,298.75 and 42,312.48 is: 58,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,302.54 : 105,298.75 = 42,312.48 : x
  2. Step 2: Convert to fraction form
    76,302.54/105,298.75 = 42,312.48/x
  3. Step 3: Cross multiply
    76,302.54x = 105,298.75 × 42,312.48
  4. Step 4: Simplify right side
    76,302.54x = 4,455,450,911.42
  5. Step 5: Solve for x
    x = 4,455,450,911.42/76,302.54
  6. Step 6: Final answer
    x = 58,391.91

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