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Finding the Fourth Proportional to 93,271.15, 128,710.43 and 50,828.77

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Solution

The fourth proportional to 93,271.15, 128,710.43 and 50,828.77 is: 70,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,271.15 : 128,710.43 = 50,828.77 : x
  2. Step 2: Convert to fraction form
    93,271.15/128,710.43 = 50,828.77/x
  3. Step 3: Cross multiply
    93,271.15x = 128,710.43 × 50,828.77
  4. Step 4: Simplify right side
    93,271.15x = 6,542,191,945.38
  5. Step 5: Solve for x
    x = 6,542,191,945.38/93,271.15
  6. Step 6: Final answer
    x = 70,141.65

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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.