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Finding the Fourth Proportional to 88,371.54, 121,913.08 and 59,681.88

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Solution

The fourth proportional to 88,371.54, 121,913.08 and 59,681.88 is: 82,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,371.54 : 121,913.08 = 59,681.88 : x
  2. Step 2: Convert to fraction form
    88,371.54/121,913.08 = 59,681.88/x
  3. Step 3: Cross multiply
    88,371.54x = 121,913.08 × 59,681.88
  4. Step 4: Simplify right side
    88,371.54x = 7,276,001,810.99
  5. Step 5: Solve for x
    x = 7,276,001,810.99/88,371.54
  6. Step 6: Final answer
    x = 82,334.22

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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.