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Finding the Fourth Proportional to 98,139.40, 147,050.70 and 88,808.20

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Solution

The fourth proportional to 98,139.40, 147,050.70 and 88,808.20 is: 133,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,139.40 : 147,050.70 = 88,808.20 : x
  2. Step 2: Convert to fraction form
    98,139.40/147,050.70 = 88,808.20/x
  3. Step 3: Cross multiply
    98,139.40x = 147,050.70 × 88,808.20
  4. Step 4: Simplify right side
    98,139.40x = 13,059,307,975.74
  5. Step 5: Solve for x
    x = 13,059,307,975.74/98,139.40
  6. Step 6: Final answer
    x = 133,068.96

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