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Finding the Fourth Proportional to 93,561.75, 129,118.05 and 51,123.02

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Solution

The fourth proportional to 93,561.75, 129,118.05 and 51,123.02 is: 70,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,561.75 : 129,118.05 = 51,123.02 : x
  2. Step 2: Convert to fraction form
    93,561.75/129,118.05 = 51,123.02/x
  3. Step 3: Cross multiply
    93,561.75x = 129,118.05 × 51,123.02
  4. Step 4: Simplify right side
    93,561.75x = 6,600,904,006.92
  5. Step 5: Solve for x
    x = 6,600,904,006.92/93,561.75
  6. Step 6: Final answer
    x = 70,551.31

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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.