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Finding the Fourth Proportional to 111,465.67, 153,833.43 and 63,709.93

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Solution

The fourth proportional to 111,465.67, 153,833.43 and 63,709.93 is: 87,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,465.67 : 153,833.43 = 63,709.93 : x
  2. Step 2: Convert to fraction form
    111,465.67/153,833.43 = 63,709.93/x
  3. Step 3: Cross multiply
    111,465.67x = 153,833.43 × 63,709.93
  4. Step 4: Simplify right side
    111,465.67x = 9,800,717,056.96
  5. Step 5: Solve for x
    x = 9,800,717,056.96/111,465.67
  6. Step 6: Final answer
    x = 87,925.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.