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Finding the Third Proportional to 58,689,276 and 128,715,948

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Solution

The third proportional to 58,689,276 and 128,715,948 is: 282,296,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,689,276 : 128,715,948 = 128,715,948 : x
  2. Step 2: Convert to fraction form
    58,689,276/128,715,948 = 128,715,948/x
  3. Step 3: Cross multiply
    58,689,276x = 128,715,948 × 128,715,948
  4. Step 4: Simplify right side
    58,689,276x = 16,567,795,269,538,704
  5. Step 5: Solve for x
    x = 16,567,795,269,538,704/58,689,276
  6. Step 6: Final answer
    x = 282,296,807.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.