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Finding the Fourth Proportional to 249,197.04, 343,892.34 and 136,019.88

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Solution

The fourth proportional to 249,197.04, 343,892.34 and 136,019.88 is: 187,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,197.04 : 343,892.34 = 136,019.88 : x
  2. Step 2: Convert to fraction form
    249,197.04/343,892.34 = 136,019.88/x
  3. Step 3: Cross multiply
    249,197.04x = 343,892.34 × 136,019.88
  4. Step 4: Simplify right side
    249,197.04x = 46,776,194,819.72
  5. Step 5: Solve for x
    x = 46,776,194,819.72/249,197.04
  6. Step 6: Final answer
    x = 187,707.67

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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.