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Finding the Fourth Proportional to 159,300.88, 238,985.88 and 48,490

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Solution

The fourth proportional to 159,300.88, 238,985.88 and 48,490 is: 72,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,300.88 : 238,985.88 = 48,490 : x
  2. Step 2: Convert to fraction form
    159,300.88/238,985.88 = 48,490/x
  3. Step 3: Cross multiply
    159,300.88x = 238,985.88 × 48,490
  4. Step 4: Simplify right side
    159,300.88x = 11,588,425,321.20
  5. Step 5: Solve for x
    x = 11,588,425,321.20/159,300.88
  6. Step 6: Final answer
    x = 72,745.52

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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.