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Finding the Fourth Proportional to 72,533.01, 100,090.54 and 40,265.11

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Solution

The fourth proportional to 72,533.01, 100,090.54 and 40,265.11 is: 55,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,533.01 : 100,090.54 = 40,265.11 : x
  2. Step 2: Convert to fraction form
    72,533.01/100,090.54 = 40,265.11/x
  3. Step 3: Cross multiply
    72,533.01x = 100,090.54 × 40,265.11
  4. Step 4: Simplify right side
    72,533.01x = 4,030,156,603.06
  5. Step 5: Solve for x
    x = 4,030,156,603.06/72,533.01
  6. Step 6: Final answer
    x = 55,563.07

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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.