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Finding the Fourth Proportional to 356,990.58, 536,010.74 and 147,038.58

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Solution

The fourth proportional to 356,990.58, 536,010.74 and 147,038.58 is: 220,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,990.58 : 536,010.74 = 147,038.58 : x
  2. Step 2: Convert to fraction form
    356,990.58/536,010.74 = 147,038.58/x
  3. Step 3: Cross multiply
    356,990.58x = 536,010.74 × 147,038.58
  4. Step 4: Simplify right side
    356,990.58x = 78,814,257,339.16
  5. Step 5: Solve for x
    x = 78,814,257,339.16/356,990.58
  6. Step 6: Final answer
    x = 220,774.05

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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.