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Finding the Fourth Proportional to 358,605.39, 537,818.43 and 105,835.71

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Solution

The fourth proportional to 358,605.39, 537,818.43 and 105,835.71 is: 158,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,605.39 : 537,818.43 = 105,835.71 : x
  2. Step 2: Convert to fraction form
    358,605.39/537,818.43 = 105,835.71/x
  3. Step 3: Cross multiply
    358,605.39x = 537,818.43 × 105,835.71
  4. Step 4: Simplify right side
    358,605.39x = 56,920,395,390.14
  5. Step 5: Solve for x
    x = 56,920,395,390.14/358,605.39
  6. Step 6: Final answer
    x = 158,727.10

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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.