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Finding the Fourth Proportional to 173,894.40, 239,989.12 and 98,456.32

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Solution

The fourth proportional to 173,894.40, 239,989.12 and 98,456.32 is: 135,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,894.40 : 239,989.12 = 98,456.32 : x
  2. Step 2: Convert to fraction form
    173,894.40/239,989.12 = 98,456.32/x
  3. Step 3: Cross multiply
    173,894.40x = 239,989.12 × 98,456.32
  4. Step 4: Simplify right side
    173,894.40x = 23,628,445,595.24
  5. Step 5: Solve for x
    x = 23,628,445,595.24/173,894.40
  6. Step 6: Final answer
    x = 135,878.13

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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.