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Finding the Fourth Proportional to 186,661.40, 279,992.10 and 163,333.40

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Solution

The fourth proportional to 186,661.40, 279,992.10 and 163,333.40 is: 245,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,661.40 : 279,992.10 = 163,333.40 : x
  2. Step 2: Convert to fraction form
    186,661.40/279,992.10 = 163,333.40/x
  3. Step 3: Cross multiply
    186,661.40x = 279,992.10 × 163,333.40
  4. Step 4: Simplify right side
    186,661.40x = 45,732,061,666.14
  5. Step 5: Solve for x
    x = 45,732,061,666.14/186,661.40
  6. Step 6: Final answer
    x = 245,000.10

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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.