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Finding the Fourth Proportional to 93,513.72, 129,049.76 and 53,230.08

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Solution

The fourth proportional to 93,513.72, 129,049.76 and 53,230.08 is: 73,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,513.72 : 129,049.76 = 53,230.08 : x
  2. Step 2: Convert to fraction form
    93,513.72/129,049.76 = 53,230.08/x
  3. Step 3: Cross multiply
    93,513.72x = 129,049.76 × 53,230.08
  4. Step 4: Simplify right side
    93,513.72x = 6,869,329,048.78
  5. Step 5: Solve for x
    x = 6,869,329,048.78/93,513.72
  6. Step 6: Final answer
    x = 73,457.98

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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.