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Finding the Fourth Proportional to 93,353.72, 128,935.71 and 67,973.58

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Solution

The fourth proportional to 93,353.72, 128,935.71 and 67,973.58 is: 93,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,353.72 : 128,935.71 = 67,973.58 : x
  2. Step 2: Convert to fraction form
    93,353.72/128,935.71 = 67,973.58/x
  3. Step 3: Cross multiply
    93,353.72x = 128,935.71 × 67,973.58
  4. Step 4: Simplify right side
    93,353.72x = 8,764,221,798.54
  5. Step 5: Solve for x
    x = 8,764,221,798.54/93,353.72
  6. Step 6: Final answer
    x = 93,881.87

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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.