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Finding the Fourth Proportional to 77,848.50, 107,431.05 and 44,314.50

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Solution

The fourth proportional to 77,848.50, 107,431.05 and 44,314.50 is: 61,154.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,848.50 : 107,431.05 = 44,314.50 : x
  2. Step 2: Convert to fraction form
    77,848.50/107,431.05 = 44,314.50/x
  3. Step 3: Cross multiply
    77,848.50x = 107,431.05 × 44,314.50
  4. Step 4: Simplify right side
    77,848.50x = 4,760,753,265.23
  5. Step 5: Solve for x
    x = 4,760,753,265.23/77,848.50
  6. Step 6: Final answer
    x = 61,154.08

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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.