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Finding the Fourth Proportional to 272,386.65, 375,905.72 and 226,988.64

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Solution

The fourth proportional to 272,386.65, 375,905.72 and 226,988.64 is: 313,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,386.65 : 375,905.72 = 226,988.64 : x
  2. Step 2: Convert to fraction form
    272,386.65/375,905.72 = 226,988.64/x
  3. Step 3: Cross multiply
    272,386.65x = 375,905.72 × 226,988.64
  4. Step 4: Simplify right side
    272,386.65x = 85,326,328,151.02
  5. Step 5: Solve for x
    x = 85,326,328,151.02/272,386.65
  6. Step 6: Final answer
    x = 313,254.44

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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.