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Finding the Fourth Proportional to 172,172.88, 237,530.24 and 99,562.34

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Solution

The fourth proportional to 172,172.88, 237,530.24 and 99,562.34 is: 137,356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,172.88 : 237,530.24 = 99,562.34 : x
  2. Step 2: Convert to fraction form
    172,172.88/237,530.24 = 99,562.34/x
  3. Step 3: Cross multiply
    172,172.88x = 237,530.24 × 99,562.34
  4. Step 4: Simplify right side
    172,172.88x = 23,649,066,984.53
  5. Step 5: Solve for x
    x = 23,649,066,984.53/172,172.88
  6. Step 6: Final answer
    x = 137,356.52

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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.