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Finding the Fourth Proportional to 172,646.56, 238,274.96 and 97,209.76

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Solution

The fourth proportional to 172,646.56, 238,274.96 and 97,209.76 is: 134,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,646.56 : 238,274.96 = 97,209.76 : x
  2. Step 2: Convert to fraction form
    172,646.56/238,274.96 = 97,209.76/x
  3. Step 3: Cross multiply
    172,646.56x = 238,274.96 × 97,209.76
  4. Step 4: Simplify right side
    172,646.56x = 23,162,651,675.61
  5. Step 5: Solve for x
    x = 23,162,651,675.61/172,646.56
  6. Step 6: Final answer
    x = 134,162.25

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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.