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Finding the Fourth Proportional to 174,450.80, 240,728.40 and 98,999.28

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Solution

The fourth proportional to 174,450.80, 240,728.40 and 98,999.28 is: 136,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,450.80 : 240,728.40 = 98,999.28 : x
  2. Step 2: Convert to fraction form
    174,450.80/240,728.40 = 98,999.28/x
  3. Step 3: Cross multiply
    174,450.80x = 240,728.40 × 98,999.28
  4. Step 4: Simplify right side
    174,450.80x = 23,831,938,275.55
  5. Step 5: Solve for x
    x = 23,831,938,275.55/174,450.80
  6. Step 6: Final answer
    x = 136,611.23

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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.