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Finding the Fourth Proportional to 105,326.72, 157,885.44 and 43,041.92

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Solution

The fourth proportional to 105,326.72, 157,885.44 and 43,041.92 is: 64,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,326.72 : 157,885.44 = 43,041.92 : x
  2. Step 2: Convert to fraction form
    105,326.72/157,885.44 = 43,041.92/x
  3. Step 3: Cross multiply
    105,326.72x = 157,885.44 × 43,041.92
  4. Step 4: Simplify right side
    105,326.72x = 6,795,692,477.64
  5. Step 5: Solve for x
    x = 6,795,692,477.64/105,326.72
  6. Step 6: Final answer
    x = 64,520.12

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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.