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Finding the Fourth Proportional to 356,873.49, 535,450.34 and 157,053.71

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Solution

The fourth proportional to 356,873.49, 535,450.34 and 157,053.71 is: 235,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,873.49 : 535,450.34 = 157,053.71 : x
  2. Step 2: Convert to fraction form
    356,873.49/535,450.34 = 157,053.71/x
  3. Step 3: Cross multiply
    356,873.49x = 535,450.34 × 157,053.71
  4. Step 4: Simplify right side
    356,873.49x = 84,094,458,955.24
  5. Step 5: Solve for x
    x = 84,094,458,955.24/356,873.49
  6. Step 6: Final answer
    x = 235,642.21

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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.