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Finding the Fourth Proportional to 93,392.53, 128,881.07 and 53,106.29

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Solution

The fourth proportional to 93,392.53, 128,881.07 and 53,106.29 is: 73,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,392.53 : 128,881.07 = 53,106.29 : x
  2. Step 2: Convert to fraction form
    93,392.53/128,881.07 = 53,106.29/x
  3. Step 3: Cross multiply
    93,392.53x = 128,881.07 × 53,106.29
  4. Step 4: Simplify right side
    93,392.53x = 6,844,395,213.40
  5. Step 5: Solve for x
    x = 6,844,395,213.40/93,392.53
  6. Step 6: Final answer
    x = 73,286.33

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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.