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Finding the Fourth Proportional to 93,064.56, 128,364.04 and 61,223.28

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Solution

The fourth proportional to 93,064.56, 128,364.04 and 61,223.28 is: 84,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,064.56 : 128,364.04 = 61,223.28 : x
  2. Step 2: Convert to fraction form
    93,064.56/128,364.04 = 61,223.28/x
  3. Step 3: Cross multiply
    93,064.56x = 128,364.04 × 61,223.28
  4. Step 4: Simplify right side
    93,064.56x = 7,858,867,562.85
  5. Step 5: Solve for x
    x = 7,858,867,562.85/93,064.56
  6. Step 6: Final answer
    x = 84,445.33

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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.