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Finding the Fourth Proportional to 93,110.84, 128,471.10 and 52,815.32

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Solution

The fourth proportional to 93,110.84, 128,471.10 and 52,815.32 is: 72,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,110.84 : 128,471.10 = 52,815.32 : x
  2. Step 2: Convert to fraction form
    93,110.84/128,471.10 = 52,815.32/x
  3. Step 3: Cross multiply
    93,110.84x = 128,471.10 × 52,815.32
  4. Step 4: Simplify right side
    93,110.84x = 6,785,242,257.25
  5. Step 5: Solve for x
    x = 6,785,242,257.25/93,110.84
  6. Step 6: Final answer
    x = 72,872.74

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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.