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Finding the Fourth Proportional to 236,666.98, 355,111.08 and 103,529.98

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Solution

The fourth proportional to 236,666.98, 355,111.08 and 103,529.98 is: 155,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,666.98 : 355,111.08 = 103,529.98 : x
  2. Step 2: Convert to fraction form
    236,666.98/355,111.08 = 103,529.98/x
  3. Step 3: Cross multiply
    236,666.98x = 355,111.08 × 103,529.98
  4. Step 4: Simplify right side
    236,666.98x = 36,764,643,010.18
  5. Step 5: Solve for x
    x = 36,764,643,010.18/236,666.98
  6. Step 6: Final answer
    x = 155,343.36

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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.