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Finding the Fourth Proportional to 61,430.70, 92,016.45 and 51,062.70

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Solution

The fourth proportional to 61,430.70, 92,016.45 and 51,062.70 is: 76,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,430.70 : 92,016.45 = 51,062.70 : x
  2. Step 2: Convert to fraction form
    61,430.70/92,016.45 = 51,062.70/x
  3. Step 3: Cross multiply
    61,430.70x = 92,016.45 × 51,062.70
  4. Step 4: Simplify right side
    61,430.70x = 4,698,608,381.42
  5. Step 5: Solve for x
    x = 4,698,608,381.42/61,430.70
  6. Step 6: Final answer
    x = 76,486.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.