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Finding the Fourth Proportional to 88,965, 122,793.57 and 51,261.12

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Solution

The fourth proportional to 88,965, 122,793.57 and 51,261.12 is: 70,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,965 : 122,793.57 = 51,261.12 : x
  2. Step 2: Convert to fraction form
    88,965/122,793.57 = 51,261.12/x
  3. Step 3: Cross multiply
    88,965x = 122,793.57 × 51,261.12
  4. Step 4: Simplify right side
    88,965x = 6,294,535,927.00
  5. Step 5: Solve for x
    x = 6,294,535,927.00/88,965
  6. Step 6: Final answer
    x = 70,752.95

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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.