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Finding the Fourth Proportional to 93,148.78, 128,563.03 and 52,866.32

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Solution

The fourth proportional to 93,148.78, 128,563.03 and 52,866.32 is: 72,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,148.78 : 128,563.03 = 52,866.32 : x
  2. Step 2: Convert to fraction form
    93,148.78/128,563.03 = 52,866.32/x
  3. Step 3: Cross multiply
    93,148.78x = 128,563.03 × 52,866.32
  4. Step 4: Simplify right side
    93,148.78x = 6,796,653,641.33
  5. Step 5: Solve for x
    x = 6,796,653,641.33/93,148.78
  6. Step 6: Final answer
    x = 72,965.57

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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.