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Finding the Third Proportional to 58,308,928 and 90,519,432

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Solution

The third proportional to 58,308,928 and 90,519,432 is: 140,523,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,308,928 : 90,519,432 = 90,519,432 : x
  2. Step 2: Convert to fraction form
    58,308,928/90,519,432 = 90,519,432/x
  3. Step 3: Cross multiply
    58,308,928x = 90,519,432 × 90,519,432
  4. Step 4: Simplify right side
    58,308,928x = 8,193,767,569,602,624
  5. Step 5: Solve for x
    x = 8,193,767,569,602,624/58,308,928
  6. Step 6: Final answer
    x = 140,523,378.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.