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Finding the Fourth Proportional to 201,960.01, 278,703.27 and 111,316.15

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Solution

The fourth proportional to 201,960.01, 278,703.27 and 111,316.15 is: 153,615.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,960.01 : 278,703.27 = 111,316.15 : x
  2. Step 2: Convert to fraction form
    201,960.01/278,703.27 = 111,316.15/x
  3. Step 3: Cross multiply
    201,960.01x = 278,703.27 × 111,316.15
  4. Step 4: Simplify right side
    201,960.01x = 31,024,174,312.05
  5. Step 5: Solve for x
    x = 31,024,174,312.05/201,960.01
  6. Step 6: Final answer
    x = 153,615.43

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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.