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Finding the Fourth Proportional to 114,870.48, 172,305.76 and 35,990.88

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Solution

The fourth proportional to 114,870.48, 172,305.76 and 35,990.88 is: 53,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,870.48 : 172,305.76 = 35,990.88 : x
  2. Step 2: Convert to fraction form
    114,870.48/172,305.76 = 35,990.88/x
  3. Step 3: Cross multiply
    114,870.48x = 172,305.76 × 35,990.88
  4. Step 4: Simplify right side
    114,870.48x = 6,201,435,931.47
  5. Step 5: Solve for x
    x = 6,201,435,931.47/114,870.48
  6. Step 6: Final answer
    x = 53,986.33

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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.