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Finding the Fourth Proportional to 450,670.64, 675,985.45 and 151,128.19

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Solution

The fourth proportional to 450,670.64, 675,985.45 and 151,128.19 is: 226,685.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,670.64 : 675,985.45 = 151,128.19 : x
  2. Step 2: Convert to fraction form
    450,670.64/675,985.45 = 151,128.19/x
  3. Step 3: Cross multiply
    450,670.64x = 675,985.45 × 151,128.19
  4. Step 4: Simplify right side
    450,670.64x = 102,160,457,524.84
  5. Step 5: Solve for x
    x = 102,160,457,524.84/450,670.64
  6. Step 6: Final answer
    x = 226,685.41

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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.