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Finding the Fourth Proportional to 93,121.92, 128,510.82 and 52,837.38

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Solution

The fourth proportional to 93,121.92, 128,510.82 and 52,837.38 is: 72,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,121.92 : 128,510.82 = 52,837.38 : x
  2. Step 2: Convert to fraction form
    93,121.92/128,510.82 = 52,837.38/x
  3. Step 3: Cross multiply
    93,121.92x = 128,510.82 × 52,837.38
  4. Step 4: Simplify right side
    93,121.92x = 6,790,175,030.45
  5. Step 5: Solve for x
    x = 6,790,175,030.45/93,121.92
  6. Step 6: Final answer
    x = 72,917.04

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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.