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Finding the Fourth Proportional to 92,321.99, 138,427.58 and 42,339.47

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Solution

The fourth proportional to 92,321.99, 138,427.58 and 42,339.47 is: 63,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,321.99 : 138,427.58 = 42,339.47 : x
  2. Step 2: Convert to fraction form
    92,321.99/138,427.58 = 42,339.47/x
  3. Step 3: Cross multiply
    92,321.99x = 138,427.58 × 42,339.47
  4. Step 4: Simplify right side
    92,321.99x = 5,860,950,370.58
  5. Step 5: Solve for x
    x = 5,860,950,370.58/92,321.99
  6. Step 6: Final answer
    x = 63,483.80

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1.5x scale

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.