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Finding the Fourth Proportional to 74,953, 112,435.98 and 19,549

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Solution

The fourth proportional to 74,953, 112,435.98 and 19,549 is: 29,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,953 : 112,435.98 = 19,549 : x
  2. Step 2: Convert to fraction form
    74,953/112,435.98 = 19,549/x
  3. Step 3: Cross multiply
    74,953x = 112,435.98 × 19,549
  4. Step 4: Simplify right side
    74,953x = 2,198,010,973.02
  5. Step 5: Solve for x
    x = 2,198,010,973.02/74,953
  6. Step 6: Final answer
    x = 29,325.19

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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.