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Finding the Fourth Proportional to 93,407.36, 128,905.01 and 53,126.93

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Solution

The fourth proportional to 93,407.36, 128,905.01 and 53,126.93 is: 73,316.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,407.36 : 128,905.01 = 53,126.93 : x
  2. Step 2: Convert to fraction form
    93,407.36/128,905.01 = 53,126.93/x
  3. Step 3: Cross multiply
    93,407.36x = 128,905.01 × 53,126.93
  4. Step 4: Simplify right side
    93,407.36x = 6,848,327,442.92
  5. Step 5: Solve for x
    x = 6,848,327,442.92/93,407.36
  6. Step 6: Final answer
    x = 73,316.79

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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.