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Finding the Fourth Proportional to 236,470.60, 353,681.90 and 211,689.80

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Solution

The fourth proportional to 236,470.60, 353,681.90 and 211,689.80 is: 316,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,470.60 : 353,681.90 = 211,689.80 : x
  2. Step 2: Convert to fraction form
    236,470.60/353,681.90 = 211,689.80/x
  3. Step 3: Cross multiply
    236,470.60x = 353,681.90 × 211,689.80
  4. Step 4: Simplify right side
    236,470.60x = 74,870,850,674.62
  5. Step 5: Solve for x
    x = 74,870,850,674.62/236,470.60
  6. Step 6: Final answer
    x = 316,618.01

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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.