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Finding the Fourth Proportional to 124,603.90, 171,952.23 and 76,838.14

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Solution

The fourth proportional to 124,603.90, 171,952.23 and 76,838.14 is: 106,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,603.90 : 171,952.23 = 76,838.14 : x
  2. Step 2: Convert to fraction form
    124,603.90/171,952.23 = 76,838.14/x
  3. Step 3: Cross multiply
    124,603.90x = 171,952.23 × 76,838.14
  4. Step 4: Simplify right side
    124,603.90x = 13,212,489,522.05
  5. Step 5: Solve for x
    x = 13,212,489,522.05/124,603.90
  6. Step 6: Final answer
    x = 106,035.92

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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.