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Finding the Fourth Proportional to 93,070.37, 128,436.28 and 50,628.90

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Solution

The fourth proportional to 93,070.37, 128,436.28 and 50,628.90 is: 69,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,070.37 : 128,436.28 = 50,628.90 : x
  2. Step 2: Convert to fraction form
    93,070.37/128,436.28 = 50,628.90/x
  3. Step 3: Cross multiply
    93,070.37x = 128,436.28 × 50,628.90
  4. Step 4: Simplify right side
    93,070.37x = 6,502,587,493.89
  5. Step 5: Solve for x
    x = 6,502,587,493.89/93,070.37
  6. Step 6: Final answer
    x = 69,867.43

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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.