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Finding the Fourth Proportional to 93,223.05, 128,643.66 and 54,464.47

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Solution

The fourth proportional to 93,223.05, 128,643.66 and 54,464.47 is: 75,158.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,223.05 : 128,643.66 = 54,464.47 : x
  2. Step 2: Convert to fraction form
    93,223.05/128,643.66 = 54,464.47/x
  3. Step 3: Cross multiply
    93,223.05x = 128,643.66 × 54,464.47
  4. Step 4: Simplify right side
    93,223.05x = 7,006,508,760.76
  5. Step 5: Solve for x
    x = 7,006,508,760.76/93,223.05
  6. Step 6: Final answer
    x = 75,158.54

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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.