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Finding the Fourth Proportional to 93,060.30, 128,424.84 and 50,619.12

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Solution

The fourth proportional to 93,060.30, 128,424.84 and 50,619.12 is: 69,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,060.30 : 128,424.84 = 50,619.12 : x
  2. Step 2: Convert to fraction form
    93,060.30/128,424.84 = 50,619.12/x
  3. Step 3: Cross multiply
    93,060.30x = 128,424.84 × 50,619.12
  4. Step 4: Simplify right side
    93,060.30x = 6,500,752,386.94
  5. Step 5: Solve for x
    x = 6,500,752,386.94/93,060.30
  6. Step 6: Final answer
    x = 69,855.27

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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.