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Finding the Fourth Proportional to 201,235.60, 301,853.40 and 121,191.40

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Solution

The fourth proportional to 201,235.60, 301,853.40 and 121,191.40 is: 181,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,235.60 : 301,853.40 = 121,191.40 : x
  2. Step 2: Convert to fraction form
    201,235.60/301,853.40 = 121,191.40/x
  3. Step 3: Cross multiply
    201,235.60x = 301,853.40 × 121,191.40
  4. Step 4: Simplify right side
    201,235.60x = 36,582,036,140.76
  5. Step 5: Solve for x
    x = 36,582,036,140.76/201,235.60
  6. Step 6: Final answer
    x = 181,787.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.