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Finding the Fourth Proportional to 288,130.58, 397,672.25 and 171,851.51

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Solution

The fourth proportional to 288,130.58, 397,672.25 and 171,851.51 is: 237,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,130.58 : 397,672.25 = 171,851.51 : x
  2. Step 2: Convert to fraction form
    288,130.58/397,672.25 = 171,851.51/x
  3. Step 3: Cross multiply
    288,130.58x = 397,672.25 × 171,851.51
  4. Step 4: Simplify right side
    288,130.58x = 68,340,578,071.41
  5. Step 5: Solve for x
    x = 68,340,578,071.41/288,130.58
  6. Step 6: Final answer
    x = 237,186.13

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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.