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Finding the Fourth Proportional to 97,520.90, 134,578.80 and 52,808.90

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Solution

The fourth proportional to 97,520.90, 134,578.80 and 52,808.90 is: 72,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,520.90 : 134,578.80 = 52,808.90 : x
  2. Step 2: Convert to fraction form
    97,520.90/134,578.80 = 52,808.90/x
  3. Step 3: Cross multiply
    97,520.90x = 134,578.80 × 52,808.90
  4. Step 4: Simplify right side
    97,520.90x = 7,106,958,391.32
  5. Step 5: Solve for x
    x = 7,106,958,391.32/97,520.90
  6. Step 6: Final answer
    x = 72,876.26

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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.