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Finding the Fourth Proportional to 97,290.72, 134,261.28 and 52,578.72

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Solution

The fourth proportional to 97,290.72, 134,261.28 and 52,578.72 is: 72,558.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,290.72 : 134,261.28 = 52,578.72 : x
  2. Step 2: Convert to fraction form
    97,290.72/134,261.28 = 52,578.72/x
  3. Step 3: Cross multiply
    97,290.72x = 134,261.28 × 52,578.72
  4. Step 4: Simplify right side
    97,290.72x = 7,059,286,247.96
  5. Step 5: Solve for x
    x = 7,059,286,247.96/97,290.72
  6. Step 6: Final answer
    x = 72,558.68

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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.