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Finding the Fourth Proportional to 115,910.40, 174,254.40 and 98,803.20

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Solution

The fourth proportional to 115,910.40, 174,254.40 and 98,803.20 is: 148,536.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910.40 : 174,254.40 = 98,803.20 : x
  2. Step 2: Convert to fraction form
    115,910.40/174,254.40 = 98,803.20/x
  3. Step 3: Cross multiply
    115,910.40x = 174,254.40 × 98,803.20
  4. Step 4: Simplify right side
    115,910.40x = 17,216,892,334.08
  5. Step 5: Solve for x
    x = 17,216,892,334.08/115,910.40
  6. Step 6: Final answer
    x = 148,536.22

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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.