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Finding the Fourth Proportional to 272,205.54, 375,643.31 and 151,343.01

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Solution

The fourth proportional to 272,205.54, 375,643.31 and 151,343.01 is: 208,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,205.54 : 375,643.31 = 151,343.01 : x
  2. Step 2: Convert to fraction form
    272,205.54/375,643.31 = 151,343.01/x
  3. Step 3: Cross multiply
    272,205.54x = 375,643.31 × 151,343.01
  4. Step 4: Simplify right side
    272,205.54x = 56,850,988,465.05
  5. Step 5: Solve for x
    x = 56,850,988,465.05/272,205.54
  6. Step 6: Final answer
    x = 208,853.16

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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.