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Finding the Fourth Proportional to 88,953.55, 122,800.32 and 51,220.51

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Solution

The fourth proportional to 88,953.55, 122,800.32 and 51,220.51 is: 70,709.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,953.55 : 122,800.32 = 51,220.51 : x
  2. Step 2: Convert to fraction form
    88,953.55/122,800.32 = 51,220.51/x
  3. Step 3: Cross multiply
    88,953.55x = 122,800.32 × 51,220.51
  4. Step 4: Simplify right side
    88,953.55x = 6,289,895,018.56
  5. Step 5: Solve for x
    x = 6,289,895,018.56/88,953.55
  6. Step 6: Final answer
    x = 70,709.88

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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.