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Finding the Fourth Proportional to 65,492.86, 98,239.98 and 52,428.28

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Solution

The fourth proportional to 65,492.86, 98,239.98 and 52,428.28 is: 78,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,492.86 : 98,239.98 = 52,428.28 : x
  2. Step 2: Convert to fraction form
    65,492.86/98,239.98 = 52,428.28/x
  3. Step 3: Cross multiply
    65,492.86x = 98,239.98 × 52,428.28
  4. Step 4: Simplify right side
    65,492.86x = 5,150,553,178.63
  5. Step 5: Solve for x
    x = 5,150,553,178.63/65,492.86
  6. Step 6: Final answer
    x = 78,642.97

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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.