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Finding the Fourth Proportional to 174,411.70, 261,617.55 and 85,722.10

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Solution

The fourth proportional to 174,411.70, 261,617.55 and 85,722.10 is: 128,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,411.70 : 261,617.55 = 85,722.10 : x
  2. Step 2: Convert to fraction form
    174,411.70/261,617.55 = 85,722.10/x
  3. Step 3: Cross multiply
    174,411.70x = 261,617.55 × 85,722.10
  4. Step 4: Simplify right side
    174,411.70x = 22,426,405,782.86
  5. Step 5: Solve for x
    x = 22,426,405,782.86/174,411.70
  6. Step 6: Final answer
    x = 128,583.15

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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.