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Finding the Fourth Proportional to 93,202.62, 128,632.30 and 54,972.98

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Solution

The fourth proportional to 93,202.62, 128,632.30 and 54,972.98 is: 75,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,202.62 : 128,632.30 = 54,972.98 : x
  2. Step 2: Convert to fraction form
    93,202.62/128,632.30 = 54,972.98/x
  3. Step 3: Cross multiply
    93,202.62x = 128,632.30 × 54,972.98
  4. Step 4: Simplify right side
    93,202.62x = 7,071,300,855.25
  5. Step 5: Solve for x
    x = 7,071,300,855.25/93,202.62
  6. Step 6: Final answer
    x = 75,870.19

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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.