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Finding the Fourth Proportional to 111,685.55, 154,000.96 and 104,599.67

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Solution

The fourth proportional to 111,685.55, 154,000.96 and 104,599.67 is: 144,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,685.55 : 154,000.96 = 104,599.67 : x
  2. Step 2: Convert to fraction form
    111,685.55/154,000.96 = 104,599.67/x
  3. Step 3: Cross multiply
    111,685.55x = 154,000.96 × 104,599.67
  4. Step 4: Simplify right side
    111,685.55x = 16,108,448,564.18
  5. Step 5: Solve for x
    x = 16,108,448,564.18/111,685.55
  6. Step 6: Final answer
    x = 144,230.38

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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.