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Finding the Fourth Proportional to 201,973.65, 278,710.95 and 111,324.63

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Solution

The fourth proportional to 201,973.65, 278,710.95 and 111,324.63 is: 153,621.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,973.65 : 278,710.95 = 111,324.63 : x
  2. Step 2: Convert to fraction form
    201,973.65/278,710.95 = 111,324.63/x
  3. Step 3: Cross multiply
    201,973.65x = 278,710.95 × 111,324.63
  4. Step 4: Simplify right side
    201,973.65x = 31,027,393,385.70
  5. Step 5: Solve for x
    x = 31,027,393,385.70/201,973.65
  6. Step 6: Final answer
    x = 153,621.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.