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Finding the Fourth Proportional to 68,390.64, 102,547.62 and 23,999.94

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Solution

The fourth proportional to 68,390.64, 102,547.62 and 23,999.94 is: 35,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,390.64 : 102,547.62 = 23,999.94 : x
  2. Step 2: Convert to fraction form
    68,390.64/102,547.62 = 23,999.94/x
  3. Step 3: Cross multiply
    68,390.64x = 102,547.62 × 23,999.94
  4. Step 4: Simplify right side
    68,390.64x = 2,461,136,727.14
  5. Step 5: Solve for x
    x = 2,461,136,727.14/68,390.64
  6. Step 6: Final answer
    x = 35,986.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.