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Finding the Fourth Proportional to 93,345.92, 128,825.02 and 53,072.31

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Solution

The fourth proportional to 93,345.92, 128,825.02 and 53,072.31 is: 73,244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,345.92 : 128,825.02 = 53,072.31 : x
  2. Step 2: Convert to fraction form
    93,345.92/128,825.02 = 53,072.31/x
  3. Step 3: Cross multiply
    93,345.92x = 128,825.02 × 53,072.31
  4. Step 4: Simplify right side
    93,345.92x = 6,837,041,131.83
  5. Step 5: Solve for x
    x = 6,837,041,131.83/93,345.92
  6. Step 6: Final answer
    x = 73,244.14

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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.