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Finding the Fourth Proportional to 190,938.30, 266,963.70 and 190,938.30

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Solution

The fourth proportional to 190,938.30, 266,963.70 and 190,938.30 is: 266,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,938.30 : 266,963.70 = 190,938.30 : x
  2. Step 2: Convert to fraction form
    190,938.30/266,963.70 = 190,938.30/x
  3. Step 3: Cross multiply
    190,938.30x = 266,963.70 × 190,938.30
  4. Step 4: Simplify right side
    190,938.30x = 50,973,595,039.71
  5. Step 5: Solve for x
    x = 50,973,595,039.71/190,938.30
  6. Step 6: Final answer
    x = 266,963.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.