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Finding the Fourth Proportional to 88,359.84, 121,937.76 and 50,634

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Solution

The fourth proportional to 88,359.84, 121,937.76 and 50,634 is: 69,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,359.84 : 121,937.76 = 50,634 : x
  2. Step 2: Convert to fraction form
    88,359.84/121,937.76 = 50,634/x
  3. Step 3: Cross multiply
    88,359.84x = 121,937.76 × 50,634
  4. Step 4: Simplify right side
    88,359.84x = 6,174,196,539.84
  5. Step 5: Solve for x
    x = 6,174,196,539.84/88,359.84
  6. Step 6: Final answer
    x = 69,875.60

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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.