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Finding the Fourth Proportional to 93,443.56, 128,943.79 and 52,047.38

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Solution

The fourth proportional to 93,443.56, 128,943.79 and 52,047.38 is: 71,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,443.56 : 128,943.79 = 52,047.38 : x
  2. Step 2: Convert to fraction form
    93,443.56/128,943.79 = 52,047.38/x
  3. Step 3: Cross multiply
    93,443.56x = 128,943.79 × 52,047.38
  4. Step 4: Simplify right side
    93,443.56x = 6,711,186,436.77
  5. Step 5: Solve for x
    x = 6,711,186,436.77/93,443.56
  6. Step 6: Final answer
    x = 71,820.75

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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.