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Finding the Fourth Proportional to 358,543, 537,814.54 and 109,225

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Solution

The fourth proportional to 358,543, 537,814.54 and 109,225 is: 163,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,543 : 537,814.54 = 109,225 : x
  2. Step 2: Convert to fraction form
    358,543/537,814.54 = 109,225/x
  3. Step 3: Cross multiply
    358,543x = 537,814.54 × 109,225
  4. Step 4: Simplify right side
    358,543x = 58,742,793,131.50
  5. Step 5: Solve for x
    x = 58,742,793,131.50/358,543
  6. Step 6: Final answer
    x = 163,837.51

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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.