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Finding the Fourth Proportional to 98,007.71, 135,281.48 and 55,594.43

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Solution

The fourth proportional to 98,007.71, 135,281.48 and 55,594.43 is: 76,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,007.71 : 135,281.48 = 55,594.43 : x
  2. Step 2: Convert to fraction form
    98,007.71/135,281.48 = 55,594.43/x
  3. Step 3: Cross multiply
    98,007.71x = 135,281.48 × 55,594.43
  4. Step 4: Simplify right side
    98,007.71x = 7,520,896,492.18
  5. Step 5: Solve for x
    x = 7,520,896,492.18/98,007.71
  6. Step 6: Final answer
    x = 76,737.80

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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.