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Finding the Fourth Proportional to 174,674.40, 262,011.60 and 155,320.80

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Solution

The fourth proportional to 174,674.40, 262,011.60 and 155,320.80 is: 232,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,674.40 : 262,011.60 = 155,320.80 : x
  2. Step 2: Convert to fraction form
    174,674.40/262,011.60 = 155,320.80/x
  3. Step 3: Cross multiply
    174,674.40x = 262,011.60 × 155,320.80
  4. Step 4: Simplify right side
    174,674.40x = 40,695,851,321.28
  5. Step 5: Solve for x
    x = 40,695,851,321.28/174,674.40
  6. Step 6: Final answer
    x = 232,981.20

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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.