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Finding the Fourth Proportional to 93,326.89, 128,802.21 and 58,921.60

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Solution

The fourth proportional to 93,326.89, 128,802.21 and 58,921.60 is: 81,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,326.89 : 128,802.21 = 58,921.60 : x
  2. Step 2: Convert to fraction form
    93,326.89/128,802.21 = 58,921.60/x
  3. Step 3: Cross multiply
    93,326.89x = 128,802.21 × 58,921.60
  4. Step 4: Simplify right side
    93,326.89x = 7,589,232,296.74
  5. Step 5: Solve for x
    x = 7,589,232,296.74/93,326.89
  6. Step 6: Final answer
    x = 81,318.82

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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.