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Finding the Fourth Proportional to 157,387.98, 235,953.30 and 73,200.64

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Solution

The fourth proportional to 157,387.98, 235,953.30 and 73,200.64 is: 109,741.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,387.98 : 235,953.30 = 73,200.64 : x
  2. Step 2: Convert to fraction form
    157,387.98/235,953.30 = 73,200.64/x
  3. Step 3: Cross multiply
    157,387.98x = 235,953.30 × 73,200.64
  4. Step 4: Simplify right side
    157,387.98x = 17,271,932,570.11
  5. Step 5: Solve for x
    x = 17,271,932,570.11/157,387.98
  6. Step 6: Final answer
    x = 109,741.12

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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.