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Finding the Third Proportional to 249,019,208.72 and 372,156,333.89

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Solution

The third proportional to 249,019,208.72 and 372,156,333.89 is: 556,183,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,019,208.72 : 372,156,333.89 = 372,156,333.89 : x
  2. Step 2: Convert to fraction form
    249,019,208.72/372,156,333.89 = 372,156,333.89/x
  3. Step 3: Cross multiply
    249,019,208.72x = 372,156,333.89 × 372,156,333.89
  4. Step 4: Simplify right side
    249,019,208.72x = 138,500,336,854,906,624
  5. Step 5: Solve for x
    x = 138,500,336,854,906,624/249,019,208.72
  6. Step 6: Final answer
    x = 556,183,346.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.