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Finding the Fourth Proportional to 157,386.98, 235,951.80 and 73,199.64

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Solution

The fourth proportional to 157,386.98, 235,951.80 and 73,199.64 is: 109,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,386.98 : 235,951.80 = 73,199.64 : x
  2. Step 2: Convert to fraction form
    157,386.98/235,951.80 = 73,199.64/x
  3. Step 3: Cross multiply
    157,386.98x = 235,951.80 × 73,199.64
  4. Step 4: Simplify right side
    157,386.98x = 17,271,586,817.35
  5. Step 5: Solve for x
    x = 17,271,586,817.35/157,386.98
  6. Step 6: Final answer
    x = 109,739.62

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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.