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Finding the Fourth Proportional to 75,280.58, 103,886.88 and 41,288.16

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Solution

The fourth proportional to 75,280.58, 103,886.88 and 41,288.16 is: 56,977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,280.58 : 103,886.88 = 41,288.16 : x
  2. Step 2: Convert to fraction form
    75,280.58/103,886.88 = 41,288.16/x
  3. Step 3: Cross multiply
    75,280.58x = 103,886.88 × 41,288.16
  4. Step 4: Simplify right side
    75,280.58x = 4,289,298,123.34
  5. Step 5: Solve for x
    x = 4,289,298,123.34/75,280.58
  6. Step 6: Final answer
    x = 56,977.49

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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.