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Finding the Fourth Proportional to 122,061.60, 183,092.40 and 105,440.40

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Solution

The fourth proportional to 122,061.60, 183,092.40 and 105,440.40 is: 158,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,061.60 : 183,092.40 = 105,440.40 : x
  2. Step 2: Convert to fraction form
    122,061.60/183,092.40 = 105,440.40/x
  3. Step 3: Cross multiply
    122,061.60x = 183,092.40 × 105,440.40
  4. Step 4: Simplify right side
    122,061.60x = 19,305,335,892.96
  5. Step 5: Solve for x
    x = 19,305,335,892.96/122,061.60
  6. Step 6: Final answer
    x = 158,160.60

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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.