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Finding the Fourth Proportional to 174,911.40, 261,783.90 and 153,916.20

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Solution

The fourth proportional to 174,911.40, 261,783.90 and 153,916.20 is: 230,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,911.40 : 261,783.90 = 153,916.20 : x
  2. Step 2: Convert to fraction form
    174,911.40/261,783.90 = 153,916.20/x
  3. Step 3: Cross multiply
    174,911.40x = 261,783.90 × 153,916.20
  4. Step 4: Simplify right side
    174,911.40x = 40,292,783,109.18
  5. Step 5: Solve for x
    x = 40,292,783,109.18/174,911.40
  6. Step 6: Final answer
    x = 230,361.10

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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.