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Finding the Fourth Proportional to 174,903.40, 261,771.90 and 153,908.20

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Solution

The fourth proportional to 174,903.40, 261,771.90 and 153,908.20 is: 230,349.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,903.40 : 261,771.90 = 153,908.20 : x
  2. Step 2: Convert to fraction form
    174,903.40/261,771.90 = 153,908.20/x
  3. Step 3: Cross multiply
    174,903.40x = 261,771.90 × 153,908.20
  4. Step 4: Simplify right side
    174,903.40x = 40,288,841,939.58
  5. Step 5: Solve for x
    x = 40,288,841,939.58/174,903.40
  6. Step 6: Final answer
    x = 230,349.11

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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.