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Finding the Fourth Proportional to 356,985.51, 536,003.15 and 147,033.51

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Solution

The fourth proportional to 356,985.51, 536,003.15 and 147,033.51 is: 220,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,985.51 : 536,003.15 = 147,033.51 : x
  2. Step 2: Convert to fraction form
    356,985.51/536,003.15 = 147,033.51/x
  3. Step 3: Cross multiply
    356,985.51x = 536,003.15 × 147,033.51
  4. Step 4: Simplify right side
    356,985.51x = 78,810,423,780.39
  5. Step 5: Solve for x
    x = 78,810,423,780.39/356,985.51
  6. Step 6: Final answer
    x = 220,766.45

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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.