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Finding the Fourth Proportional to 228,387.67, 342,187.74 and 151,403.45

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Solution

The fourth proportional to 228,387.67, 342,187.74 and 151,403.45 is: 226,844.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,387.67 : 342,187.74 = 151,403.45 : x
  2. Step 2: Convert to fraction form
    228,387.67/342,187.74 = 151,403.45/x
  3. Step 3: Cross multiply
    228,387.67x = 342,187.74 × 151,403.45
  4. Step 4: Simplify right side
    228,387.67x = 51,808,402,672.76
  5. Step 5: Solve for x
    x = 51,808,402,672.76/228,387.67
  6. Step 6: Final answer
    x = 226,844.13

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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.