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Finding the Fourth Proportional to 235,308.79, 324,725.74 and 127,878.58

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Solution

The fourth proportional to 235,308.79, 324,725.74 and 127,878.58 is: 176,472.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,308.79 : 324,725.74 = 127,878.58 : x
  2. Step 2: Convert to fraction form
    235,308.79/324,725.74 = 127,878.58/x
  3. Step 3: Cross multiply
    235,308.79x = 324,725.74 × 127,878.58
  4. Step 4: Simplify right side
    235,308.79x = 41,525,466,520.65
  5. Step 5: Solve for x
    x = 41,525,466,520.65/235,308.79
  6. Step 6: Final answer
    x = 176,472.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.