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Finding the Fourth Proportional to 124,638.40, 186,957.60 and 110,860.30

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Solution

The fourth proportional to 124,638.40, 186,957.60 and 110,860.30 is: 166,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,638.40 : 186,957.60 = 110,860.30 : x
  2. Step 2: Convert to fraction form
    124,638.40/186,957.60 = 110,860.30/x
  3. Step 3: Cross multiply
    124,638.40x = 186,957.60 × 110,860.30
  4. Step 4: Simplify right side
    124,638.40x = 20,726,175,623.28
  5. Step 5: Solve for x
    x = 20,726,175,623.28/124,638.40
  6. Step 6: Final answer
    x = 166,290.45

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1.5x scale

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.