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Finding the Fourth Proportional to 201,697.76, 278,349.54 and 111,060.38

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Solution

The fourth proportional to 201,697.76, 278,349.54 and 111,060.38 is: 153,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,697.76 : 278,349.54 = 111,060.38 : x
  2. Step 2: Convert to fraction form
    201,697.76/278,349.54 = 111,060.38/x
  3. Step 3: Cross multiply
    201,697.76x = 278,349.54 × 111,060.38
  4. Step 4: Simplify right side
    201,697.76x = 30,913,605,685.23
  5. Step 5: Solve for x
    x = 30,913,605,685.23/201,697.76
  6. Step 6: Final answer
    x = 153,266.98

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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.