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Finding the Fourth Proportional to 249,879.57, 344,842.11 and 136,702.32

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Solution

The fourth proportional to 249,879.57, 344,842.11 and 136,702.32 is: 188,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,879.57 : 344,842.11 = 136,702.32 : x
  2. Step 2: Convert to fraction form
    249,879.57/344,842.11 = 136,702.32/x
  3. Step 3: Cross multiply
    249,879.57x = 344,842.11 × 136,702.32
  4. Step 4: Simplify right side
    249,879.57x = 47,140,716,470.70
  5. Step 5: Solve for x
    x = 47,140,716,470.70/249,879.57
  6. Step 6: Final answer
    x = 188,653.74

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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.