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Finding the Fourth Proportional to 236,547.80, 354,821.70 and 161,898.20

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Solution

The fourth proportional to 236,547.80, 354,821.70 and 161,898.20 is: 242,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,547.80 : 354,821.70 = 161,898.20 : x
  2. Step 2: Convert to fraction form
    236,547.80/354,821.70 = 161,898.20/x
  3. Step 3: Cross multiply
    236,547.80x = 354,821.70 × 161,898.20
  4. Step 4: Simplify right side
    236,547.80x = 57,444,994,550.94
  5. Step 5: Solve for x
    x = 57,444,994,550.94/236,547.80
  6. Step 6: Final answer
    x = 242,847.30

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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.