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Finding the Fourth Proportional to 93,358.72, 128,832 and 50,918.08

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Solution

The fourth proportional to 93,358.72, 128,832 and 50,918.08 is: 70,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,358.72 : 128,832 = 50,918.08 : x
  2. Step 2: Convert to fraction form
    93,358.72/128,832 = 50,918.08/x
  3. Step 3: Cross multiply
    93,358.72x = 128,832 × 50,918.08
  4. Step 4: Simplify right side
    93,358.72x = 6,559,878,082.56
  5. Step 5: Solve for x
    x = 6,559,878,082.56/93,358.72
  6. Step 6: Final answer
    x = 70,265.30

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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.