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Finding the Fourth Proportional to 68,312.48, 94,271.30 and 37,684.88

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Solution

The fourth proportional to 68,312.48, 94,271.30 and 37,684.88 is: 52,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,312.48 : 94,271.30 = 37,684.88 : x
  2. Step 2: Convert to fraction form
    68,312.48/94,271.30 = 37,684.88/x
  3. Step 3: Cross multiply
    68,312.48x = 94,271.30 × 37,684.88
  4. Step 4: Simplify right side
    68,312.48x = 3,552,601,968.16
  5. Step 5: Solve for x
    x = 3,552,601,968.16/68,312.48
  6. Step 6: Final answer
    x = 52,005.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.