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Finding the Fourth Proportional to 174,048.90, 261,036.90 and 85,366.05

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Solution

The fourth proportional to 174,048.90, 261,036.90 and 85,366.05 is: 128,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,048.90 : 261,036.90 = 85,366.05 : x
  2. Step 2: Convert to fraction form
    174,048.90/261,036.90 = 85,366.05/x
  3. Step 3: Cross multiply
    174,048.90x = 261,036.90 × 85,366.05
  4. Step 4: Simplify right side
    174,048.90x = 22,283,689,057.25
  5. Step 5: Solve for x
    x = 22,283,689,057.25/174,048.90
  6. Step 6: Final answer
    x = 128,031.20

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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.