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Finding the Fourth Proportional to 137,373.87, 206,090.28 and 42,602.01

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Solution

The fourth proportional to 137,373.87, 206,090.28 and 42,602.01 is: 63,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,373.87 : 206,090.28 = 42,602.01 : x
  2. Step 2: Convert to fraction form
    137,373.87/206,090.28 = 42,602.01/x
  3. Step 3: Cross multiply
    137,373.87x = 206,090.28 × 42,602.01
  4. Step 4: Simplify right side
    137,373.87x = 8,779,860,169.46
  5. Step 5: Solve for x
    x = 8,779,860,169.46/137,373.87
  6. Step 6: Final answer
    x = 63,912.16

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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.