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Finding the Fourth Proportional to 102,476.64, 153,810.80 and 63,110.56

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Solution

The fourth proportional to 102,476.64, 153,810.80 and 63,110.56 is: 94,724.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,476.64 : 153,810.80 = 63,110.56 : x
  2. Step 2: Convert to fraction form
    102,476.64/153,810.80 = 63,110.56/x
  3. Step 3: Cross multiply
    102,476.64x = 153,810.80 × 63,110.56
  4. Step 4: Simplify right side
    102,476.64x = 9,707,085,722.05
  5. Step 5: Solve for x
    x = 9,707,085,722.05/102,476.64
  6. Step 6: Final answer
    x = 94,724.86

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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.