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Finding the Fourth Proportional to 381,973.80, 572,582.70 and 168,857.40

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Solution

The fourth proportional to 381,973.80, 572,582.70 and 168,857.40 is: 253,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,973.80 : 572,582.70 = 168,857.40 : x
  2. Step 2: Convert to fraction form
    381,973.80/572,582.70 = 168,857.40/x
  3. Step 3: Cross multiply
    381,973.80x = 572,582.70 × 168,857.40
  4. Step 4: Simplify right side
    381,973.80x = 96,684,826,006.98
  5. Step 5: Solve for x
    x = 96,684,826,006.98/381,973.80
  6. Step 6: Final answer
    x = 253,119.00

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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.