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Finding the Fourth Proportional to 93,149.41, 128,563.90 and 52,866.94

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Solution

The fourth proportional to 93,149.41, 128,563.90 and 52,866.94 is: 72,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,149.41 : 128,563.90 = 52,866.94 : x
  2. Step 2: Convert to fraction form
    93,149.41/128,563.90 = 52,866.94/x
  3. Step 3: Cross multiply
    93,149.41x = 128,563.90 × 52,866.94
  4. Step 4: Simplify right side
    93,149.41x = 6,796,779,723.13
  5. Step 5: Solve for x
    x = 6,796,779,723.13/93,149.41
  6. Step 6: Final answer
    x = 72,966.43

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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.