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Finding the Fourth Proportional to 93,140.58, 128,530.43 and 52,851.94

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Solution

The fourth proportional to 93,140.58, 128,530.43 and 52,851.94 is: 72,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,140.58 : 128,530.43 = 52,851.94 : x
  2. Step 2: Convert to fraction form
    93,140.58/128,530.43 = 52,851.94/x
  3. Step 3: Cross multiply
    93,140.58x = 128,530.43 × 52,851.94
  4. Step 4: Simplify right side
    93,140.58x = 6,793,082,385.34
  5. Step 5: Solve for x
    x = 6,793,082,385.34/93,140.58
  6. Step 6: Final answer
    x = 72,933.65

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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.