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Finding the Fourth Proportional to 61,411.04, 92,117.12 and 19,858.08

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Solution

The fourth proportional to 61,411.04, 92,117.12 and 19,858.08 is: 29,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,411.04 : 92,117.12 = 19,858.08 : x
  2. Step 2: Convert to fraction form
    61,411.04/92,117.12 = 19,858.08/x
  3. Step 3: Cross multiply
    61,411.04x = 92,117.12 × 19,858.08
  4. Step 4: Simplify right side
    61,411.04x = 1,829,269,138.33
  5. Step 5: Solve for x
    x = 1,829,269,138.33/61,411.04
  6. Step 6: Final answer
    x = 29,787.30

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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.