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Finding the Fourth Proportional to 127,017.74, 175,286.90 and 69,653.65

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Solution

The fourth proportional to 127,017.74, 175,286.90 and 69,653.65 is: 96,123.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,017.74 : 175,286.90 = 69,653.65 : x
  2. Step 2: Convert to fraction form
    127,017.74/175,286.90 = 69,653.65/x
  3. Step 3: Cross multiply
    127,017.74x = 175,286.90 × 69,653.65
  4. Step 4: Simplify right side
    127,017.74x = 12,209,371,157.48
  5. Step 5: Solve for x
    x = 12,209,371,157.48/127,017.74
  6. Step 6: Final answer
    x = 96,123.35

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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.