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Finding the Fourth Proportional to 96,829.60, 133,620.64 and 56,545.60

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Solution

The fourth proportional to 96,829.60, 133,620.64 and 56,545.60 is: 78,030.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,829.60 : 133,620.64 = 56,545.60 : x
  2. Step 2: Convert to fraction form
    96,829.60/133,620.64 = 56,545.60/x
  3. Step 3: Cross multiply
    96,829.60x = 133,620.64 × 56,545.60
  4. Step 4: Simplify right side
    96,829.60x = 7,555,659,261.18
  5. Step 5: Solve for x
    x = 7,555,659,261.18/96,829.60
  6. Step 6: Final answer
    x = 78,030.47

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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.