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Finding the Fourth Proportional to 193,868.80, 272,038.40 and 193,868.80

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Solution

The fourth proportional to 193,868.80, 272,038.40 and 193,868.80 is: 272,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,868.80 : 272,038.40 = 193,868.80 : x
  2. Step 2: Convert to fraction form
    193,868.80/272,038.40 = 193,868.80/x
  3. Step 3: Cross multiply
    193,868.80x = 272,038.40 × 193,868.80
  4. Step 4: Simplify right side
    193,868.80x = 52,739,758,161.92
  5. Step 5: Solve for x
    x = 52,739,758,161.92/193,868.80
  6. Step 6: Final answer
    x = 272,038.40

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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.