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Finding the Fourth Proportional to 157,796.40, 236,867.40 and 98,698.80

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Solution

The fourth proportional to 157,796.40, 236,867.40 and 98,698.80 is: 148,156.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,796.40 : 236,867.40 = 98,698.80 : x
  2. Step 2: Convert to fraction form
    157,796.40/236,867.40 = 98,698.80/x
  3. Step 3: Cross multiply
    157,796.40x = 236,867.40 × 98,698.80
  4. Step 4: Simplify right side
    157,796.40x = 23,378,528,139.12
  5. Step 5: Solve for x
    x = 23,378,528,139.12/157,796.40
  6. Step 6: Final answer
    x = 148,156.28

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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.