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Finding the Fourth Proportional to 128,037.24, 191,798.64 and 63,801.63

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Solution

The fourth proportional to 128,037.24, 191,798.64 and 63,801.63 is: 95,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,037.24 : 191,798.64 = 63,801.63 : x
  2. Step 2: Convert to fraction form
    128,037.24/191,798.64 = 63,801.63/x
  3. Step 3: Cross multiply
    128,037.24x = 191,798.64 × 63,801.63
  4. Step 4: Simplify right side
    128,037.24x = 12,237,065,863.78
  5. Step 5: Solve for x
    x = 12,237,065,863.78/128,037.24
  6. Step 6: Final answer
    x = 95,574.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.