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Finding the Fourth Proportional to 174,009.40, 261,038.40 and 74,168.80

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Solution

The fourth proportional to 174,009.40, 261,038.40 and 74,168.80 is: 111,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,009.40 : 261,038.40 = 74,168.80 : x
  2. Step 2: Convert to fraction form
    174,009.40/261,038.40 = 74,168.80/x
  3. Step 3: Cross multiply
    174,009.40x = 261,038.40 × 74,168.80
  4. Step 4: Simplify right side
    174,009.40x = 19,360,904,881.92
  5. Step 5: Solve for x
    x = 19,360,904,881.92/174,009.40
  6. Step 6: Final answer
    x = 111,263.56

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1.5x scale

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.