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Finding the Fourth Proportional to 118,302.30, 177,502.05 and 43,458.30

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Solution

The fourth proportional to 118,302.30, 177,502.05 and 43,458.30 is: 65,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,302.30 : 177,502.05 = 43,458.30 : x
  2. Step 2: Convert to fraction form
    118,302.30/177,502.05 = 43,458.30/x
  3. Step 3: Cross multiply
    118,302.30x = 177,502.05 × 43,458.30
  4. Step 4: Simplify right side
    118,302.30x = 7,713,937,339.52
  5. Step 5: Solve for x
    x = 7,713,937,339.52/118,302.30
  6. Step 6: Final answer
    x = 65,205.30

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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.