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Finding the Third Proportional to 91,443,072 and 139,308,385.50

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Solution

The third proportional to 91,443,072 and 139,308,385.50 is: 212,228,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,443,072 : 139,308,385.50 = 139,308,385.50 : x
  2. Step 2: Convert to fraction form
    91,443,072/139,308,385.50 = 139,308,385.50/x
  3. Step 3: Cross multiply
    91,443,072x = 139,308,385.50 × 139,308,385.50
  4. Step 4: Simplify right side
    91,443,072x = 19,406,826,270,616,612
  5. Step 5: Solve for x
    x = 19,406,826,270,616,612/91,443,072
  6. Step 6: Final answer
    x = 212,228,502.89

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.