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Finding the Fourth Proportional to 93,407.41, 128,905.07 and 53,126.97

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Solution

The fourth proportional to 93,407.41, 128,905.07 and 53,126.97 is: 73,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,407.41 : 128,905.07 = 53,126.97 : x
  2. Step 2: Convert to fraction form
    93,407.41/128,905.07 = 53,126.97/x
  3. Step 3: Cross multiply
    93,407.41x = 128,905.07 × 53,126.97
  4. Step 4: Simplify right side
    93,407.41x = 6,848,336,061.64
  5. Step 5: Solve for x
    x = 6,848,336,061.64/93,407.41
  6. Step 6: Final answer
    x = 73,316.84

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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.