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Finding the Third Proportional to 58,916,782.69 and 128,031,814.69

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Solution

The third proportional to 58,916,782.69 and 128,031,814.69 is: 278,225,402.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,916,782.69 : 128,031,814.69 = 128,031,814.69 : x
  2. Step 2: Convert to fraction form
    58,916,782.69/128,031,814.69 = 128,031,814.69/x
  3. Step 3: Cross multiply
    58,916,782.69x = 128,031,814.69 × 128,031,814.69
  4. Step 4: Simplify right side
    58,916,782.69x = 16,392,145,572,174,340
  5. Step 5: Solve for x
    x = 16,392,145,572,174,340/58,916,782.69
  6. Step 6: Final answer
    x = 278,225,402.41

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.