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Finding the Fourth Proportional to 93,113.57, 128,499.65 and 52,829.03

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Solution

The fourth proportional to 93,113.57, 128,499.65 and 52,829.03 is: 72,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,113.57 : 128,499.65 = 52,829.03 : x
  2. Step 2: Convert to fraction form
    93,113.57/128,499.65 = 52,829.03/x
  3. Step 3: Cross multiply
    93,113.57x = 128,499.65 × 52,829.03
  4. Step 4: Simplify right side
    93,113.57x = 6,788,512,214.64
  5. Step 5: Solve for x
    x = 6,788,512,214.64/93,113.57
  6. Step 6: Final answer
    x = 72,905.72

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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.