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Finding the Fourth Proportional to 93,924, 129,615.12 and 54,203.04

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Solution

The fourth proportional to 93,924, 129,615.12 and 54,203.04 is: 74,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,924 : 129,615.12 = 54,203.04 : x
  2. Step 2: Convert to fraction form
    93,924/129,615.12 = 54,203.04/x
  3. Step 3: Cross multiply
    93,924x = 129,615.12 × 54,203.04
  4. Step 4: Simplify right side
    93,924x = 7,025,533,533.96
  5. Step 5: Solve for x
    x = 7,025,533,533.96/93,924
  6. Step 6: Final answer
    x = 74,800.20

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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.