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Finding the Fourth Proportional to 98,748.42, 136,269.45 and 56,320.62

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Solution

The fourth proportional to 98,748.42, 136,269.45 and 56,320.62 is: 77,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,748.42 : 136,269.45 = 56,320.62 : x
  2. Step 2: Convert to fraction form
    98,748.42/136,269.45 = 56,320.62/x
  3. Step 3: Cross multiply
    98,748.42x = 136,269.45 × 56,320.62
  4. Step 4: Simplify right side
    98,748.42x = 7,674,779,911.06
  5. Step 5: Solve for x
    x = 7,674,779,911.06/98,748.42
  6. Step 6: Final answer
    x = 77,720.53

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