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Finding the Fourth Proportional to 93,471.30, 128,989.49 and 57,646.98

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Solution

The fourth proportional to 93,471.30, 128,989.49 and 57,646.98 is: 79,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,471.30 : 128,989.49 = 57,646.98 : x
  2. Step 2: Convert to fraction form
    93,471.30/128,989.49 = 57,646.98/x
  3. Step 3: Cross multiply
    93,471.30x = 128,989.49 × 57,646.98
  4. Step 4: Simplify right side
    93,471.30x = 7,435,854,262.01
  5. Step 5: Solve for x
    x = 7,435,854,262.01/93,471.30
  6. Step 6: Final answer
    x = 79,552.27

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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.