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Finding the Fourth Proportional to 164,867.27, 247,134.69 and 64,988.78

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Solution

The fourth proportional to 164,867.27, 247,134.69 and 64,988.78 is: 97,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,867.27 : 247,134.69 = 64,988.78 : x
  2. Step 2: Convert to fraction form
    164,867.27/247,134.69 = 64,988.78/x
  3. Step 3: Cross multiply
    164,867.27x = 247,134.69 × 64,988.78
  4. Step 4: Simplify right side
    164,867.27x = 16,060,980,763.10
  5. Step 5: Solve for x
    x = 16,060,980,763.10/164,867.27
  6. Step 6: Final answer
    x = 97,417.65

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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.