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Finding the Fourth Proportional to 245,398.44, 368,102.26 and 76,915.04

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Solution

The fourth proportional to 245,398.44, 368,102.26 and 76,915.04 is: 115,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,398.44 : 368,102.26 = 76,915.04 : x
  2. Step 2: Convert to fraction form
    245,398.44/368,102.26 = 76,915.04/x
  3. Step 3: Cross multiply
    245,398.44x = 368,102.26 × 76,915.04
  4. Step 4: Simplify right side
    245,398.44x = 28,312,600,051.99
  5. Step 5: Solve for x
    x = 28,312,600,051.99/245,398.44
  6. Step 6: Final answer
    x = 115,374.00

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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.