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Finding the Fourth Proportional to 289,088.79, 398,866.86 and 166,551.18

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Solution

The fourth proportional to 289,088.79, 398,866.86 and 166,551.18 is: 229,797.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,088.79 : 398,866.86 = 166,551.18 : x
  2. Step 2: Convert to fraction form
    289,088.79/398,866.86 = 166,551.18/x
  3. Step 3: Cross multiply
    289,088.79x = 398,866.86 × 166,551.18
  4. Step 4: Simplify right side
    289,088.79x = 66,431,746,195.89
  5. Step 5: Solve for x
    x = 66,431,746,195.89/289,088.79
  6. Step 6: Final answer
    x = 229,797.03

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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.