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Finding the Fourth Proportional to 118,606.51, 178,015.02 and 55,461.00

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Solution

The fourth proportional to 118,606.51, 178,015.02 and 55,461.00 is: 83,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,606.51 : 178,015.02 = 55,461.00 : x
  2. Step 2: Convert to fraction form
    118,606.51/178,015.02 = 55,461.00/x
  3. Step 3: Cross multiply
    118,606.51x = 178,015.02 × 55,461.00
  4. Step 4: Simplify right side
    118,606.51x = 9,872,891,483.80
  5. Step 5: Solve for x
    x = 9,872,891,483.80/118,606.51
  6. Step 6: Final answer
    x = 83,240.72

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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.