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Finding the Fourth Proportional to 358,605.78, 537,822.56 and 105,817.97

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Solution

The fourth proportional to 358,605.78, 537,822.56 and 105,817.97 is: 158,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,605.78 : 537,822.56 = 105,817.97 : x
  2. Step 2: Convert to fraction form
    358,605.78/537,822.56 = 105,817.97/x
  3. Step 3: Cross multiply
    358,605.78x = 537,822.56 × 105,817.97
  4. Step 4: Simplify right side
    358,605.78x = 56,911,291,519.40
  5. Step 5: Solve for x
    x = 56,911,291,519.40/358,605.78
  6. Step 6: Final answer
    x = 158,701.55

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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.