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Finding the Fourth Proportional to 93,574.36, 128,833.32 and 75,728.44

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Solution

The fourth proportional to 93,574.36, 128,833.32 and 75,728.44 is: 104,263.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,574.36 : 128,833.32 = 75,728.44 : x
  2. Step 2: Convert to fraction form
    93,574.36/128,833.32 = 75,728.44/x
  3. Step 3: Cross multiply
    93,574.36x = 128,833.32 × 75,728.44
  4. Step 4: Simplify right side
    93,574.36x = 9,756,346,343.62
  5. Step 5: Solve for x
    x = 9,756,346,343.62/93,574.36
  6. Step 6: Final answer
    x = 104,263.03

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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.