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Finding the Fourth Proportional to 107,030.40, 147,707.28 and 61,715.76

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Solution

The fourth proportional to 107,030.40, 147,707.28 and 61,715.76 is: 85,170.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,030.40 : 147,707.28 = 61,715.76 : x
  2. Step 2: Convert to fraction form
    107,030.40/147,707.28 = 61,715.76/x
  3. Step 3: Cross multiply
    107,030.40x = 147,707.28 × 61,715.76
  4. Step 4: Simplify right side
    107,030.40x = 9,115,867,042.73
  5. Step 5: Solve for x
    x = 9,115,867,042.73/107,030.40
  6. Step 6: Final answer
    x = 85,170.82

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