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Finding the Fourth Proportional to 301,555.69, 416,154.08 and 163,740.42

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Solution

The fourth proportional to 301,555.69, 416,154.08 and 163,740.42 is: 225,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,555.69 : 416,154.08 = 163,740.42 : x
  2. Step 2: Convert to fraction form
    301,555.69/416,154.08 = 163,740.42/x
  3. Step 3: Cross multiply
    301,555.69x = 416,154.08 × 163,740.42
  4. Step 4: Simplify right side
    301,555.69x = 68,141,243,025.21
  5. Step 5: Solve for x
    x = 68,141,243,025.21/301,555.69
  6. Step 6: Final answer
    x = 225,965.71

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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.