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Finding the Fourth Proportional to 93,356.25, 128,812.28 and 54,586.61

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Solution

The fourth proportional to 93,356.25, 128,812.28 and 54,586.61 is: 75,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,356.25 : 128,812.28 = 54,586.61 : x
  2. Step 2: Convert to fraction form
    93,356.25/128,812.28 = 54,586.61/x
  3. Step 3: Cross multiply
    93,356.25x = 128,812.28 × 54,586.61
  4. Step 4: Simplify right side
    93,356.25x = 7,031,424,774.58
  5. Step 5: Solve for x
    x = 7,031,424,774.58/93,356.25
  6. Step 6: Final answer
    x = 75,318.20

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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.