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Finding the Fourth Proportional to 358,555, 537,857.12 and 118,668.46

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Solution

The fourth proportional to 358,555, 537,857.12 and 118,668.46 is: 178,010.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,555 : 537,857.12 = 118,668.46 : x
  2. Step 2: Convert to fraction form
    358,555/537,857.12 = 118,668.46/x
  3. Step 3: Cross multiply
    358,555x = 537,857.12 × 118,668.46
  4. Step 4: Simplify right side
    358,555x = 63,826,676,130.44
  5. Step 5: Solve for x
    x = 63,826,676,130.44/358,555
  6. Step 6: Final answer
    x = 178,010.84

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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.