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Finding the Fourth Proportional to 77,241.95, 106,603.95 and 43,263.42

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Solution

The fourth proportional to 77,241.95, 106,603.95 and 43,263.42 is: 59,709.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,241.95 : 106,603.95 = 43,263.42 : x
  2. Step 2: Convert to fraction form
    77,241.95/106,603.95 = 43,263.42/x
  3. Step 3: Cross multiply
    77,241.95x = 106,603.95 × 43,263.42
  4. Step 4: Simplify right side
    77,241.95x = 4,612,050,981.63
  5. Step 5: Solve for x
    x = 4,612,050,981.63/77,241.95
  6. Step 6: Final answer
    x = 59,709.14

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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.