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Finding the Fourth Proportional to 129,064.80, 193,597.20 and 35,570.40

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Solution

The fourth proportional to 129,064.80, 193,597.20 and 35,570.40 is: 53,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,064.80 : 193,597.20 = 35,570.40 : x
  2. Step 2: Convert to fraction form
    129,064.80/193,597.20 = 35,570.40/x
  3. Step 3: Cross multiply
    129,064.80x = 193,597.20 × 35,570.40
  4. Step 4: Simplify right side
    129,064.80x = 6,886,329,842.88
  5. Step 5: Solve for x
    x = 6,886,329,842.88/129,064.80
  6. Step 6: Final answer
    x = 53,355.60

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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.