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Finding the Fourth Proportional to 167,421.40, 251,052.90 and 97,322.20

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Solution

The fourth proportional to 167,421.40, 251,052.90 and 97,322.20 is: 145,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,421.40 : 251,052.90 = 97,322.20 : x
  2. Step 2: Convert to fraction form
    167,421.40/251,052.90 = 97,322.20/x
  3. Step 3: Cross multiply
    167,421.40x = 251,052.90 × 97,322.20
  4. Step 4: Simplify right side
    167,421.40x = 24,433,020,544.38
  5. Step 5: Solve for x
    x = 24,433,020,544.38/167,421.40
  6. Step 6: Final answer
    x = 145,937.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.