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Finding the Fourth Proportional to 201,994.85, 278,740.35 and 111,346.13

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Solution

The fourth proportional to 201,994.85, 278,740.35 and 111,346.13 is: 153,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,994.85 : 278,740.35 = 111,346.13 : x
  2. Step 2: Convert to fraction form
    201,994.85/278,740.35 = 111,346.13/x
  3. Step 3: Cross multiply
    201,994.85x = 278,740.35 × 111,346.13
  4. Step 4: Simplify right side
    201,994.85x = 31,036,657,853.64
  5. Step 5: Solve for x
    x = 31,036,657,853.64/201,994.85
  6. Step 6: Final answer
    x = 153,650.74

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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.