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Finding the Fourth Proportional to 93,641.89, 129,225.81 and 51,200.43

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Solution

The fourth proportional to 93,641.89, 129,225.81 and 51,200.43 is: 70,656.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,641.89 : 129,225.81 = 51,200.43 : x
  2. Step 2: Convert to fraction form
    93,641.89/129,225.81 = 51,200.43/x
  3. Step 3: Cross multiply
    93,641.89x = 129,225.81 × 51,200.43
  4. Step 4: Simplify right side
    93,641.89x = 6,616,417,039.10
  5. Step 5: Solve for x
    x = 6,616,417,039.10/93,641.89
  6. Step 6: Final answer
    x = 70,656.59

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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.