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Finding the Fourth Proportional to 130,118.70, 181,932.90 and 130,118.70

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Solution

The fourth proportional to 130,118.70, 181,932.90 and 130,118.70 is: 181,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,118.70 : 181,932.90 = 130,118.70 : x
  2. Step 2: Convert to fraction form
    130,118.70/181,932.90 = 130,118.70/x
  3. Step 3: Cross multiply
    130,118.70x = 181,932.90 × 130,118.70
  4. Step 4: Simplify right side
    130,118.70x = 23,672,872,435.23
  5. Step 5: Solve for x
    x = 23,672,872,435.23/130,118.70
  6. Step 6: Final answer
    x = 181,932.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.