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Finding the Fourth Proportional to 161,987.40, 242,802.90 and 56,752.20

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Solution

The fourth proportional to 161,987.40, 242,802.90 and 56,752.20 is: 85,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,987.40 : 242,802.90 = 56,752.20 : x
  2. Step 2: Convert to fraction form
    161,987.40/242,802.90 = 56,752.20/x
  3. Step 3: Cross multiply
    161,987.40x = 242,802.90 × 56,752.20
  4. Step 4: Simplify right side
    161,987.40x = 13,779,598,741.38
  5. Step 5: Solve for x
    x = 13,779,598,741.38/161,987.40
  6. Step 6: Final answer
    x = 85,065.87

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