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Finding the Fourth Proportional to 114,903.50, 172,422.68 and 48,338.51

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Solution

The fourth proportional to 114,903.50, 172,422.68 and 48,338.51 is: 72,536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,903.50 : 172,422.68 = 48,338.51 : x
  2. Step 2: Convert to fraction form
    114,903.50/172,422.68 = 48,338.51/x
  3. Step 3: Cross multiply
    114,903.50x = 172,422.68 × 48,338.51
  4. Step 4: Simplify right side
    114,903.50x = 8,334,654,337.60
  5. Step 5: Solve for x
    x = 8,334,654,337.60/114,903.50
  6. Step 6: Final answer
    x = 72,536.13

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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.