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Finding the Fourth Proportional to 201,479.63, 278,042.53 and 110,842.50

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Solution

The fourth proportional to 201,479.63, 278,042.53 and 110,842.50 is: 152,963.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,479.63 : 278,042.53 = 110,842.50 : x
  2. Step 2: Convert to fraction form
    201,479.63/278,042.53 = 110,842.50/x
  3. Step 3: Cross multiply
    201,479.63x = 278,042.53 × 110,842.50
  4. Step 4: Simplify right side
    201,479.63x = 30,818,929,131.53
  5. Step 5: Solve for x
    x = 30,818,929,131.53/201,479.63
  6. Step 6: Final answer
    x = 152,963.00

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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.