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Finding the Fourth Proportional to 92,962, 139,948.81 and 84,695.14

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Solution

The fourth proportional to 92,962, 139,948.81 and 84,695.14 is: 127,503.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,962 : 139,948.81 = 84,695.14 : x
  2. Step 2: Convert to fraction form
    92,962/139,948.81 = 84,695.14/x
  3. Step 3: Cross multiply
    92,962x = 139,948.81 × 84,695.14
  4. Step 4: Simplify right side
    92,962x = 11,852,984,055.78
  5. Step 5: Solve for x
    x = 11,852,984,055.78/92,962
  6. Step 6: Final answer
    x = 127,503.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.