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Finding the Fourth Proportional to 181,173.70, 249,993.70 and 100,602.19

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Solution

The fourth proportional to 181,173.70, 249,993.70 and 100,602.19 is: 138,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,173.70 : 249,993.70 = 100,602.19 : x
  2. Step 2: Convert to fraction form
    181,173.70/249,993.70 = 100,602.19/x
  3. Step 3: Cross multiply
    181,173.70x = 249,993.70 × 100,602.19
  4. Step 4: Simplify right side
    181,173.70x = 25,149,913,706.20
  5. Step 5: Solve for x
    x = 25,149,913,706.20/181,173.70
  6. Step 6: Final answer
    x = 138,816.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.