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Finding the Fourth Proportional to 93,117.75, 139,704.17 and 53,703.15

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Solution

The fourth proportional to 93,117.75, 139,704.17 and 53,703.15 is: 80,570.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.75 : 139,704.17 = 53,703.15 : x
  2. Step 2: Convert to fraction form
    93,117.75/139,704.17 = 53,703.15/x
  3. Step 3: Cross multiply
    93,117.75x = 139,704.17 × 53,703.15
  4. Step 4: Simplify right side
    93,117.75x = 7,502,553,728.62
  5. Step 5: Solve for x
    x = 7,502,553,728.62/93,117.75
  6. Step 6: Final answer
    x = 80,570.61

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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.