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Finding the Fourth Proportional to 201,700.46, 278,344.35 and 111,054.58

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Solution

The fourth proportional to 201,700.46, 278,344.35 and 111,054.58 is: 153,254.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,700.46 : 278,344.35 = 111,054.58 : x
  2. Step 2: Convert to fraction form
    201,700.46/278,344.35 = 111,054.58/x
  3. Step 3: Cross multiply
    201,700.46x = 278,344.35 × 111,054.58
  4. Step 4: Simplify right side
    201,700.46x = 30,911,414,188.76
  5. Step 5: Solve for x
    x = 30,911,414,188.76/201,700.46
  6. Step 6: Final answer
    x = 153,254.06

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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.