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Finding the Fourth Proportional to 174,807.18, 261,024.96 and 138,865.05

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Solution

The fourth proportional to 174,807.18, 261,024.96 and 138,865.05 is: 207,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,807.18 : 261,024.96 = 138,865.05 : x
  2. Step 2: Convert to fraction form
    174,807.18/261,024.96 = 138,865.05/x
  3. Step 3: Cross multiply
    174,807.18x = 261,024.96 × 138,865.05
  4. Step 4: Simplify right side
    174,807.18x = 36,247,244,642.39
  5. Step 5: Solve for x
    x = 36,247,244,642.39/174,807.18
  6. Step 6: Final answer
    x = 207,355.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.