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Finding the Fourth Proportional to 74,348.54, 102,601.08 and 40,357.01

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Solution

The fourth proportional to 74,348.54, 102,601.08 and 40,357.01 is: 55,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,348.54 : 102,601.08 = 40,357.01 : x
  2. Step 2: Convert to fraction form
    74,348.54/102,601.08 = 40,357.01/x
  3. Step 3: Cross multiply
    74,348.54x = 102,601.08 × 40,357.01
  4. Step 4: Simplify right side
    74,348.54x = 4,140,672,779.51
  5. Step 5: Solve for x
    x = 4,140,672,779.51/74,348.54
  6. Step 6: Final answer
    x = 55,692.72

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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.