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Finding the Fourth Proportional to 122,596.40, 183,894.60 and 91,492.40

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Solution

The fourth proportional to 122,596.40, 183,894.60 and 91,492.40 is: 137,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,596.40 : 183,894.60 = 91,492.40 : x
  2. Step 2: Convert to fraction form
    122,596.40/183,894.60 = 91,492.40/x
  3. Step 3: Cross multiply
    122,596.40x = 183,894.60 × 91,492.40
  4. Step 4: Simplify right side
    122,596.40x = 16,824,958,301.04
  5. Step 5: Solve for x
    x = 16,824,958,301.04/122,596.40
  6. Step 6: Final answer
    x = 137,238.60

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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.