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Finding the Fourth Proportional to 151,371, 208,898.46 and 84,303

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Solution

The fourth proportional to 151,371, 208,898.46 and 84,303 is: 116,341.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,371 : 208,898.46 = 84,303 : x
  2. Step 2: Convert to fraction form
    151,371/208,898.46 = 84,303/x
  3. Step 3: Cross multiply
    151,371x = 208,898.46 × 84,303
  4. Step 4: Simplify right side
    151,371x = 17,610,766,873.38
  5. Step 5: Solve for x
    x = 17,610,766,873.38/151,371
  6. Step 6: Final answer
    x = 116,341.75

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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.