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Finding the Fourth Proportional to 114,445.80, 171,668.70 and 112,501.80

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Solution

The fourth proportional to 114,445.80, 171,668.70 and 112,501.80 is: 168,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,445.80 : 171,668.70 = 112,501.80 : x
  2. Step 2: Convert to fraction form
    114,445.80/171,668.70 = 112,501.80/x
  3. Step 3: Cross multiply
    114,445.80x = 171,668.70 × 112,501.80
  4. Step 4: Simplify right side
    114,445.80x = 19,313,037,753.66
  5. Step 5: Solve for x
    x = 19,313,037,753.66/114,445.80
  6. Step 6: Final answer
    x = 168,752.70

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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.