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Finding the Fourth Proportional to 61,463,480.80, 92,199,886.80 and 18,329,317.60

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Solution

The fourth proportional to 61,463,480.80, 92,199,886.80 and 18,329,317.60 is: 27,495,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,463,480.80 : 92,199,886.80 = 18,329,317.60 : x
  2. Step 2: Convert to fraction form
    61,463,480.80/92,199,886.80 = 18,329,317.60/x
  3. Step 3: Cross multiply
    61,463,480.80x = 92,199,886.80 × 18,329,317.60
  4. Step 4: Simplify right side
    61,463,480.80x = 1,689,961,007,841,247.75
  5. Step 5: Solve for x
    x = 1,689,961,007,841,247.75/61,463,480.80
  6. Step 6: Final answer
    x = 27,495,367.75

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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.