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Finding the Fourth Proportional to 93,141.85, 128,535.77 and 50,700.38

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Solution

The fourth proportional to 93,141.85, 128,535.77 and 50,700.38 is: 69,966.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,141.85 : 128,535.77 = 50,700.38 : x
  2. Step 2: Convert to fraction form
    93,141.85/128,535.77 = 50,700.38/x
  3. Step 3: Cross multiply
    93,141.85x = 128,535.77 × 50,700.38
  4. Step 4: Simplify right side
    93,141.85x = 6,516,811,486.41
  5. Step 5: Solve for x
    x = 6,516,811,486.41/93,141.85
  6. Step 6: Final answer
    x = 69,966.53

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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.