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Finding the Fourth Proportional to 358,564.70, 537,721.70 and 105,778.08

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Solution

The fourth proportional to 358,564.70, 537,721.70 and 105,778.08 is: 158,630.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,564.70 : 537,721.70 = 105,778.08 : x
  2. Step 2: Convert to fraction form
    358,564.70/537,721.70 = 105,778.08/x
  3. Step 3: Cross multiply
    358,564.70x = 537,721.70 × 105,778.08
  4. Step 4: Simplify right side
    358,564.70x = 56,879,168,471.45
  5. Step 5: Solve for x
    x = 56,879,168,471.45/358,564.70
  6. Step 6: Final answer
    x = 158,630.14

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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.