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Finding the Fourth Proportional to 92,858.67, 139,317.90 and 42,275.79

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Solution

The fourth proportional to 92,858.67, 139,317.90 and 42,275.79 is: 63,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,858.67 : 139,317.90 = 42,275.79 : x
  2. Step 2: Convert to fraction form
    92,858.67/139,317.90 = 42,275.79/x
  3. Step 3: Cross multiply
    92,858.67x = 139,317.90 × 42,275.79
  4. Step 4: Simplify right side
    92,858.67x = 5,889,774,125.11
  5. Step 5: Solve for x
    x = 5,889,774,125.11/92,858.67
  6. Step 6: Final answer
    x = 63,427.29

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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.