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Finding the Fourth Proportional to 111,214.94, 152,978.91 and 97,535.66

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Solution

The fourth proportional to 111,214.94, 152,978.91 and 97,535.66 is: 134,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,214.94 : 152,978.91 = 97,535.66 : x
  2. Step 2: Convert to fraction form
    111,214.94/152,978.91 = 97,535.66/x
  3. Step 3: Cross multiply
    111,214.94x = 152,978.91 × 97,535.66
  4. Step 4: Simplify right side
    111,214.94x = 14,920,898,952.93
  5. Step 5: Solve for x
    x = 14,920,898,952.93/111,214.94
  6. Step 6: Final answer
    x = 134,162.72

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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.