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Finding the Fourth Proportional to 211,036.70, 316,555.05 and 63,292.70

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Solution

The fourth proportional to 211,036.70, 316,555.05 and 63,292.70 is: 94,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,036.70 : 316,555.05 = 63,292.70 : x
  2. Step 2: Convert to fraction form
    211,036.70/316,555.05 = 63,292.70/x
  3. Step 3: Cross multiply
    211,036.70x = 316,555.05 × 63,292.70
  4. Step 4: Simplify right side
    211,036.70x = 20,035,623,813.14
  5. Step 5: Solve for x
    x = 20,035,623,813.14/211,036.70
  6. Step 6: Final answer
    x = 94,939.05

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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.