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Finding the Fourth Proportional to 79,580.98, 109,840.93 and 45,609.38

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Solution

The fourth proportional to 79,580.98, 109,840.93 and 45,609.38 is: 62,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,580.98 : 109,840.93 = 45,609.38 : x
  2. Step 2: Convert to fraction form
    79,580.98/109,840.93 = 45,609.38/x
  3. Step 3: Cross multiply
    79,580.98x = 109,840.93 × 45,609.38
  4. Step 4: Simplify right side
    79,580.98x = 5,009,776,464.60
  5. Step 5: Solve for x
    x = 5,009,776,464.60/79,580.98
  6. Step 6: Final answer
    x = 62,951.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.