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Finding the Fourth Proportional to 93,017.16, 128,358 and 50,575.32

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Solution

The fourth proportional to 93,017.16, 128,358 and 50,575.32 is: 69,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,017.16 : 128,358 = 50,575.32 : x
  2. Step 2: Convert to fraction form
    93,017.16/128,358 = 50,575.32/x
  3. Step 3: Cross multiply
    93,017.16x = 128,358 × 50,575.32
  4. Step 4: Simplify right side
    93,017.16x = 6,491,746,924.56
  5. Step 5: Solve for x
    x = 6,491,746,924.56/93,017.16
  6. Step 6: Final answer
    x = 69,790.85

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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.