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Finding the Fourth Proportional to 61,701.68, 92,553 and 20,148.80

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Solution

The fourth proportional to 61,701.68, 92,553 and 20,148.80 is: 30,223.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,701.68 : 92,553 = 20,148.80 : x
  2. Step 2: Convert to fraction form
    61,701.68/92,553 = 20,148.80/x
  3. Step 3: Cross multiply
    61,701.68x = 92,553 × 20,148.80
  4. Step 4: Simplify right side
    61,701.68x = 1,864,831,886.40
  5. Step 5: Solve for x
    x = 1,864,831,886.40/61,701.68
  6. Step 6: Final answer
    x = 30,223.36

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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.