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Finding the Fourth Proportional to 356,749.70, 535,124.55 and 238,477.70

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Solution

The fourth proportional to 356,749.70, 535,124.55 and 238,477.70 is: 357,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,749.70 : 535,124.55 = 238,477.70 : x
  2. Step 2: Convert to fraction form
    356,749.70/535,124.55 = 238,477.70/x
  3. Step 3: Cross multiply
    356,749.70x = 535,124.55 × 238,477.70
  4. Step 4: Simplify right side
    356,749.70x = 127,615,271,897.54
  5. Step 5: Solve for x
    x = 127,615,271,897.54/356,749.70
  6. Step 6: Final answer
    x = 357,716.55

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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.