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Finding the Fourth Proportional to 109,207.49, 150,702.97 and 60,809.51

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Solution

The fourth proportional to 109,207.49, 150,702.97 and 60,809.51 is: 83,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,207.49 : 150,702.97 = 60,809.51 : x
  2. Step 2: Convert to fraction form
    109,207.49/150,702.97 = 60,809.51/x
  3. Step 3: Cross multiply
    109,207.49x = 150,702.97 × 60,809.51
  4. Step 4: Simplify right side
    109,207.49x = 9,164,174,090.47
  5. Step 5: Solve for x
    x = 9,164,174,090.47/109,207.49
  6. Step 6: Final answer
    x = 83,915.25

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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.