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Finding the Fourth Proportional to 356,910.63, 535,506.13 and 157,090.93

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Solution

The fourth proportional to 356,910.63, 535,506.13 and 157,090.93 is: 235,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,910.63 : 535,506.13 = 157,090.93 : x
  2. Step 2: Convert to fraction form
    356,910.63/535,506.13 = 157,090.93/x
  3. Step 3: Cross multiply
    356,910.63x = 535,506.13 × 157,090.93
  4. Step 4: Simplify right side
    356,910.63x = 84,123,155,982.40
  5. Step 5: Solve for x
    x = 84,123,155,982.40/356,910.63
  6. Step 6: Final answer
    x = 235,698.10

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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.