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Finding the Fourth Proportional to 93,790.89, 129,443.75 and 53,495.42

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Solution

The fourth proportional to 93,790.89, 129,443.75 and 53,495.42 is: 73,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,790.89 : 129,443.75 = 53,495.42 : x
  2. Step 2: Convert to fraction form
    93,790.89/129,443.75 = 53,495.42/x
  3. Step 3: Cross multiply
    93,790.89x = 129,443.75 × 53,495.42
  4. Step 4: Simplify right side
    93,790.89x = 6,924,646,857.93
  5. Step 5: Solve for x
    x = 6,924,646,857.93/93,790.89
  6. Step 6: Final answer
    x = 73,830.70

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1.5x scale

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.