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Finding the Fourth Proportional to 100,526.40, 150,746.40 and 50,587.20

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Solution

The fourth proportional to 100,526.40, 150,746.40 and 50,587.20 is: 75,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,526.40 : 150,746.40 = 50,587.20 : x
  2. Step 2: Convert to fraction form
    100,526.40/150,746.40 = 50,587.20/x
  3. Step 3: Cross multiply
    100,526.40x = 150,746.40 × 50,587.20
  4. Step 4: Simplify right side
    100,526.40x = 7,625,838,286.08
  5. Step 5: Solve for x
    x = 7,625,838,286.08/100,526.40
  6. Step 6: Final answer
    x = 75,859.06

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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.