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Finding the Fourth Proportional to 65,218.90, 97,828.35 and 57,702.10

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Solution

The fourth proportional to 65,218.90, 97,828.35 and 57,702.10 is: 86,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,218.90 : 97,828.35 = 57,702.10 : x
  2. Step 2: Convert to fraction form
    65,218.90/97,828.35 = 57,702.10/x
  3. Step 3: Cross multiply
    65,218.90x = 97,828.35 × 57,702.10
  4. Step 4: Simplify right side
    65,218.90x = 5,644,901,234.54
  5. Step 5: Solve for x
    x = 5,644,901,234.54/65,218.90
  6. Step 6: Final answer
    x = 86,553.15

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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.