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Finding the Fourth Proportional to 118,313.55, 177,364.53 and 43,416.32

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Solution

The fourth proportional to 118,313.55, 177,364.53 and 43,416.32 is: 65,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,313.55 : 177,364.53 = 43,416.32 : x
  2. Step 2: Convert to fraction form
    118,313.55/177,364.53 = 43,416.32/x
  3. Step 3: Cross multiply
    118,313.55x = 177,364.53 × 43,416.32
  4. Step 4: Simplify right side
    118,313.55x = 7,700,514,304.31
  5. Step 5: Solve for x
    x = 7,700,514,304.31/118,313.55
  6. Step 6: Final answer
    x = 65,085.65

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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.