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Finding the Fourth Proportional to 107,237.40, 160,856.10 and 40,655.40

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Solution

The fourth proportional to 107,237.40, 160,856.10 and 40,655.40 is: 60,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,237.40 : 160,856.10 = 40,655.40 : x
  2. Step 2: Convert to fraction form
    107,237.40/160,856.10 = 40,655.40/x
  3. Step 3: Cross multiply
    107,237.40x = 160,856.10 × 40,655.40
  4. Step 4: Simplify right side
    107,237.40x = 6,539,669,087.94
  5. Step 5: Solve for x
    x = 6,539,669,087.94/107,237.40
  6. Step 6: Final answer
    x = 60,983.10

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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.