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Finding the Fourth Proportional to 111,281.86, 153,484.21 and 95,785.86

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Solution

The fourth proportional to 111,281.86, 153,484.21 and 95,785.86 is: 132,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,281.86 : 153,484.21 = 95,785.86 : x
  2. Step 2: Convert to fraction form
    111,281.86/153,484.21 = 95,785.86/x
  3. Step 3: Cross multiply
    111,281.86x = 153,484.21 × 95,785.86
  4. Step 4: Simplify right side
    111,281.86x = 14,701,617,207.77
  5. Step 5: Solve for x
    x = 14,701,617,207.77/111,281.86
  6. Step 6: Final answer
    x = 132,111.53

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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.