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Finding the Fourth Proportional to 174,003.90, 260,811.45 and 99,159.90

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Solution

The fourth proportional to 174,003.90, 260,811.45 and 99,159.90 is: 148,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,003.90 : 260,811.45 = 99,159.90 : x
  2. Step 2: Convert to fraction form
    174,003.90/260,811.45 = 99,159.90/x
  3. Step 3: Cross multiply
    174,003.90x = 260,811.45 × 99,159.90
  4. Step 4: Simplify right side
    174,003.90x = 25,862,037,300.86
  5. Step 5: Solve for x
    x = 25,862,037,300.86/174,003.90
  6. Step 6: Final answer
    x = 148,629.07

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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.