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Finding the Fourth Proportional to 93,944, 129,642.72 and 54,223.04

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Solution

The fourth proportional to 93,944, 129,642.72 and 54,223.04 is: 74,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,944 : 129,642.72 = 54,223.04 : x
  2. Step 2: Convert to fraction form
    93,944/129,642.72 = 54,223.04/x
  3. Step 3: Cross multiply
    93,944x = 129,642.72 × 54,223.04
  4. Step 4: Simplify right side
    93,944x = 7,029,622,392.27
  5. Step 5: Solve for x
    x = 7,029,622,392.27/93,944
  6. Step 6: Final answer
    x = 74,827.80

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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.