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Finding the Fourth Proportional to 249,213, 343,794.18 and 163,134.03

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Solution

The fourth proportional to 249,213, 343,794.18 and 163,134.03 is: 225,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,213 : 343,794.18 = 163,134.03 : x
  2. Step 2: Convert to fraction form
    249,213/343,794.18 = 163,134.03/x
  3. Step 3: Cross multiply
    249,213x = 343,794.18 × 163,134.03
  4. Step 4: Simplify right side
    249,213x = 56,084,530,073.95
  5. Step 5: Solve for x
    x = 56,084,530,073.95/249,213
  6. Step 6: Final answer
    x = 225,046.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.