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Finding the Fourth Proportional to 98,953.15, 136,445.47 and 76,241.47

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Solution

The fourth proportional to 98,953.15, 136,445.47 and 76,241.47 is: 105,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,953.15 : 136,445.47 = 76,241.47 : x
  2. Step 2: Convert to fraction form
    98,953.15/136,445.47 = 76,241.47/x
  3. Step 3: Cross multiply
    98,953.15x = 136,445.47 × 76,241.47
  4. Step 4: Simplify right side
    98,953.15x = 10,402,803,207.64
  5. Step 5: Solve for x
    x = 10,402,803,207.64/98,953.15
  6. Step 6: Final answer
    x = 105,128.57

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