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Finding the Fourth Proportional to 88,702.25, 122,409.11 and 60,457.28

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Solution

The fourth proportional to 88,702.25, 122,409.11 and 60,457.28 is: 83,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,702.25 : 122,409.11 = 60,457.28 : x
  2. Step 2: Convert to fraction form
    88,702.25/122,409.11 = 60,457.28/x
  3. Step 3: Cross multiply
    88,702.25x = 122,409.11 × 60,457.28
  4. Step 4: Simplify right side
    88,702.25x = 7,400,521,837.82
  5. Step 5: Solve for x
    x = 7,400,521,837.82/88,702.25
  6. Step 6: Final answer
    x = 83,431.05

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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.