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Finding the Fourth Proportional to 93,432.64, 128,935.24 and 50,991.48

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Solution

The fourth proportional to 93,432.64, 128,935.24 and 50,991.48 is: 70,367.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.64 : 128,935.24 = 50,991.48 : x
  2. Step 2: Convert to fraction form
    93,432.64/128,935.24 = 50,991.48/x
  3. Step 3: Cross multiply
    93,432.64x = 128,935.24 × 50,991.48
  4. Step 4: Simplify right side
    93,432.64x = 6,574,598,711.76
  5. Step 5: Solve for x
    x = 6,574,598,711.76/93,432.64
  6. Step 6: Final answer
    x = 70,367.26

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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.