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Finding the Fourth Proportional to 93,454.40, 128,962.57 and 53,164.37

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Solution

The fourth proportional to 93,454.40, 128,962.57 and 53,164.37 is: 73,364.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,454.40 : 128,962.57 = 53,164.37 : x
  2. Step 2: Convert to fraction form
    93,454.40/128,962.57 = 53,164.37/x
  3. Step 3: Cross multiply
    93,454.40x = 128,962.57 × 53,164.37
  4. Step 4: Simplify right side
    93,454.40x = 6,856,213,521.81
  5. Step 5: Solve for x
    x = 6,856,213,521.81/93,454.40
  6. Step 6: Final answer
    x = 73,364.27

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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.