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Finding the Fourth Proportional to 213,158.80, 319,853.40 and 94,848.40

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Solution

The fourth proportional to 213,158.80, 319,853.40 and 94,848.40 is: 142,323.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,158.80 : 319,853.40 = 94,848.40 : x
  2. Step 2: Convert to fraction form
    213,158.80/319,853.40 = 94,848.40/x
  3. Step 3: Cross multiply
    213,158.80x = 319,853.40 × 94,848.40
  4. Step 4: Simplify right side
    213,158.80x = 30,337,583,224.56
  5. Step 5: Solve for x
    x = 30,337,583,224.56/213,158.80
  6. Step 6: Final answer
    x = 142,323.86

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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.