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Finding the Fourth Proportional to 356,672.26, 535,003.08 and 86,802.94

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Solution

The fourth proportional to 356,672.26, 535,003.08 and 86,802.94 is: 130,203.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,672.26 : 535,003.08 = 86,802.94 : x
  2. Step 2: Convert to fraction form
    356,672.26/535,003.08 = 86,802.94/x
  3. Step 3: Cross multiply
    356,672.26x = 535,003.08 × 86,802.94
  4. Step 4: Simplify right side
    356,672.26x = 46,439,840,253.06
  5. Step 5: Solve for x
    x = 46,439,840,253.06/356,672.26
  6. Step 6: Final answer
    x = 130,203.12

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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.