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Finding the Fourth Proportional to 171,773, 236,966.10 and 121,499.72

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Solution

The fourth proportional to 171,773, 236,966.10 and 121,499.72 is: 167,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,773 : 236,966.10 = 121,499.72 : x
  2. Step 2: Convert to fraction form
    171,773/236,966.10 = 121,499.72/x
  3. Step 3: Cross multiply
    171,773x = 236,966.10 × 121,499.72
  4. Step 4: Simplify right side
    171,773x = 28,791,314,799.49
  5. Step 5: Solve for x
    x = 28,791,314,799.49/171,773
  6. Step 6: Final answer
    x = 167,612.57

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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.