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Finding the Fourth Proportional to 93,857.01, 129,490.98 and 53,542.40

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Solution

The fourth proportional to 93,857.01, 129,490.98 and 53,542.40 is: 73,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,857.01 : 129,490.98 = 53,542.40 : x
  2. Step 2: Convert to fraction form
    93,857.01/129,490.98 = 53,542.40/x
  3. Step 3: Cross multiply
    93,857.01x = 129,490.98 × 53,542.40
  4. Step 4: Simplify right side
    93,857.01x = 6,933,257,200.10
  5. Step 5: Solve for x
    x = 6,933,257,200.10/93,857.01
  6. Step 6: Final answer
    x = 73,870.42

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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.