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Finding the Fourth Proportional to 88,333.68, 121,848.54 and 55,576.00

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Solution

The fourth proportional to 88,333.68, 121,848.54 and 55,576.00 is: 76,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,333.68 : 121,848.54 = 55,576.00 : x
  2. Step 2: Convert to fraction form
    88,333.68/121,848.54 = 55,576.00/x
  3. Step 3: Cross multiply
    88,333.68x = 121,848.54 × 55,576.00
  4. Step 4: Simplify right side
    88,333.68x = 6,771,854,402.94
  5. Step 5: Solve for x
    x = 6,771,854,402.94/88,333.68
  6. Step 6: Final answer
    x = 76,662.20

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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.