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Finding the Fourth Proportional to 93,356.36, 128,795.10 and 57,484.16

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Solution

The fourth proportional to 93,356.36, 128,795.10 and 57,484.16 is: 79,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,356.36 : 128,795.10 = 57,484.16 : x
  2. Step 2: Convert to fraction form
    93,356.36/128,795.10 = 57,484.16/x
  3. Step 3: Cross multiply
    93,356.36x = 128,795.10 × 57,484.16
  4. Step 4: Simplify right side
    93,356.36x = 7,403,678,135.62
  5. Step 5: Solve for x
    x = 7,403,678,135.62/93,356.36
  6. Step 6: Final answer
    x = 79,305.56

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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.