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Finding the Fourth Proportional to 249,544.64, 344,379.12 and 136,369.28

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Solution

The fourth proportional to 249,544.64, 344,379.12 and 136,369.28 is: 188,193.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,544.64 : 344,379.12 = 136,369.28 : x
  2. Step 2: Convert to fraction form
    249,544.64/344,379.12 = 136,369.28/x
  3. Step 3: Cross multiply
    249,544.64x = 344,379.12 × 136,369.28
  4. Step 4: Simplify right side
    249,544.64x = 46,962,732,641.43
  5. Step 5: Solve for x
    x = 46,962,732,641.43/249,544.64
  6. Step 6: Final answer
    x = 188,193.71

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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.