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Finding the Fourth Proportional to 76,195.52, 105,132.84 and 45,985.76

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Solution

The fourth proportional to 76,195.52, 105,132.84 and 45,985.76 is: 63,450.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,195.52 : 105,132.84 = 45,985.76 : x
  2. Step 2: Convert to fraction form
    76,195.52/105,132.84 = 45,985.76/x
  3. Step 3: Cross multiply
    76,195.52x = 105,132.84 × 45,985.76
  4. Step 4: Simplify right side
    76,195.52x = 4,834,613,548.36
  5. Step 5: Solve for x
    x = 4,834,613,548.36/76,195.52
  6. Step 6: Final answer
    x = 63,450.10

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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.