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Finding the Fourth Proportional to 177,531.80, 265,860.30 and 118,045.40

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Solution

The fourth proportional to 177,531.80, 265,860.30 and 118,045.40 is: 176,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,531.80 : 265,860.30 = 118,045.40 : x
  2. Step 2: Convert to fraction form
    177,531.80/265,860.30 = 118,045.40/x
  3. Step 3: Cross multiply
    177,531.80x = 265,860.30 × 118,045.40
  4. Step 4: Simplify right side
    177,531.80x = 31,383,585,457.62
  5. Step 5: Solve for x
    x = 31,383,585,457.62/177,531.80
  6. Step 6: Final answer
    x = 176,777.26

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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.