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Finding the Fourth Proportional to 92,145.98, 127,200.68 and 61,948.82

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Solution

The fourth proportional to 92,145.98, 127,200.68 and 61,948.82 is: 85,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,145.98 : 127,200.68 = 61,948.82 : x
  2. Step 2: Convert to fraction form
    92,145.98/127,200.68 = 61,948.82/x
  3. Step 3: Cross multiply
    92,145.98x = 127,200.68 × 61,948.82
  4. Step 4: Simplify right side
    92,145.98x = 7,879,932,029.20
  5. Step 5: Solve for x
    x = 7,879,932,029.20/92,145.98
  6. Step 6: Final answer
    x = 85,515.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.