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Finding the Fourth Proportional to 96,830.08, 133,602 and 56,520.96

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Solution

The fourth proportional to 96,830.08, 133,602 and 56,520.96 is: 77,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,830.08 : 133,602 = 56,520.96 : x
  2. Step 2: Convert to fraction form
    96,830.08/133,602 = 56,520.96/x
  3. Step 3: Cross multiply
    96,830.08x = 133,602 × 56,520.96
  4. Step 4: Simplify right side
    96,830.08x = 7,551,313,297.92
  5. Step 5: Solve for x
    x = 7,551,313,297.92/96,830.08
  6. Step 6: Final answer
    x = 77,985.20

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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.