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Finding the Fourth Proportional to 107,337.10, 160,941.65 and 65,813.90

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Solution

The fourth proportional to 107,337.10, 160,941.65 and 65,813.90 is: 98,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,337.10 : 160,941.65 = 65,813.90 : x
  2. Step 2: Convert to fraction form
    107,337.10/160,941.65 = 65,813.90/x
  3. Step 3: Cross multiply
    107,337.10x = 160,941.65 × 65,813.90
  4. Step 4: Simplify right side
    107,337.10x = 10,592,197,658.94
  5. Step 5: Solve for x
    x = 10,592,197,658.94/107,337.10
  6. Step 6: Final answer
    x = 98,681.61

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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.