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Finding the Fourth Proportional to 153,596.19, 211,975.07 and 85,635.17

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Solution

The fourth proportional to 153,596.19, 211,975.07 and 85,635.17 is: 118,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,596.19 : 211,975.07 = 85,635.17 : x
  2. Step 2: Convert to fraction form
    153,596.19/211,975.07 = 85,635.17/x
  3. Step 3: Cross multiply
    153,596.19x = 211,975.07 × 85,635.17
  4. Step 4: Simplify right side
    153,596.19x = 18,152,519,667.16
  5. Step 5: Solve for x
    x = 18,152,519,667.16/153,596.19
  6. Step 6: Final answer
    x = 118,183.40

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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.