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Finding the Fourth Proportional to 131,538.60, 197,336.70 and 65,010.60

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Solution

The fourth proportional to 131,538.60, 197,336.70 and 65,010.60 is: 97,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,538.60 : 197,336.70 = 65,010.60 : x
  2. Step 2: Convert to fraction form
    131,538.60/197,336.70 = 65,010.60/x
  3. Step 3: Cross multiply
    131,538.60x = 197,336.70 × 65,010.60
  4. Step 4: Simplify right side
    131,538.60x = 12,828,977,269.02
  5. Step 5: Solve for x
    x = 12,828,977,269.02/131,538.60
  6. Step 6: Final answer
    x = 97,530.13

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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.