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Finding the Fourth Proportional to 249,697.94, 344,584.60 and 136,520.69

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Solution

The fourth proportional to 249,697.94, 344,584.60 and 136,520.69 is: 188,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,697.94 : 344,584.60 = 136,520.69 : x
  2. Step 2: Convert to fraction form
    249,697.94/344,584.60 = 136,520.69/x
  3. Step 3: Cross multiply
    249,697.94x = 344,584.60 × 136,520.69
  4. Step 4: Simplify right side
    249,697.94x = 47,042,925,291.15
  5. Step 5: Solve for x
    x = 47,042,925,291.15/249,697.94
  6. Step 6: Final answer
    x = 188,399.34

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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.