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Finding the Fourth Proportional to 96,491.68, 145,394.80 and 79,345.60

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Solution

The fourth proportional to 96,491.68, 145,394.80 and 79,345.60 is: 119,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,491.68 : 145,394.80 = 79,345.60 : x
  2. Step 2: Convert to fraction form
    96,491.68/145,394.80 = 79,345.60/x
  3. Step 3: Cross multiply
    96,491.68x = 145,394.80 × 79,345.60
  4. Step 4: Simplify right side
    96,491.68x = 11,536,437,642.88
  5. Step 5: Solve for x
    x = 11,536,437,642.88/96,491.68
  6. Step 6: Final answer
    x = 119,558.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.