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Finding the Fourth Proportional to 122,324.10, 183,486.15 and 103,661.70

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Solution

The fourth proportional to 122,324.10, 183,486.15 and 103,661.70 is: 155,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,324.10 : 183,486.15 = 103,661.70 : x
  2. Step 2: Convert to fraction form
    122,324.10/183,486.15 = 103,661.70/x
  3. Step 3: Cross multiply
    122,324.10x = 183,486.15 × 103,661.70
  4. Step 4: Simplify right side
    122,324.10x = 19,020,486,235.46
  5. Step 5: Solve for x
    x = 19,020,486,235.46/122,324.10
  6. Step 6: Final answer
    x = 155,492.55

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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.