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Finding the Fourth Proportional to 311,730.40, 466,904.40 and 124,645.60

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Solution

The fourth proportional to 311,730.40, 466,904.40 and 124,645.60 is: 186,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,730.40 : 466,904.40 = 124,645.60 : x
  2. Step 2: Convert to fraction form
    311,730.40/466,904.40 = 124,645.60/x
  3. Step 3: Cross multiply
    311,730.40x = 466,904.40 × 124,645.60
  4. Step 4: Simplify right side
    311,730.40x = 58,197,579,080.64
  5. Step 5: Solve for x
    x = 58,197,579,080.64/311,730.40
  6. Step 6: Final answer
    x = 186,692.02

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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.