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Finding the Fourth Proportional to 118,767.16, 178,167.16 and 39,903.96

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Solution

The fourth proportional to 118,767.16, 178,167.16 and 39,903.96 is: 59,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,767.16 : 178,167.16 = 39,903.96 : x
  2. Step 2: Convert to fraction form
    118,767.16/178,167.16 = 39,903.96/x
  3. Step 3: Cross multiply
    118,767.16x = 178,167.16 × 39,903.96
  4. Step 4: Simplify right side
    118,767.16x = 7,109,575,225.95
  5. Step 5: Solve for x
    x = 7,109,575,225.95/118,767.16
  6. Step 6: Final answer
    x = 59,861.46

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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.