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Finding the Fourth Proportional to 93,762.36, 129,391.92 and 51,320.88

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Solution

The fourth proportional to 93,762.36, 129,391.92 and 51,320.88 is: 70,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,762.36 : 129,391.92 = 51,320.88 : x
  2. Step 2: Convert to fraction form
    93,762.36/129,391.92 = 51,320.88/x
  3. Step 3: Cross multiply
    93,762.36x = 129,391.92 × 51,320.88
  4. Step 4: Simplify right side
    93,762.36x = 6,640,507,199.29
  5. Step 5: Solve for x
    x = 6,640,507,199.29/93,762.36
  6. Step 6: Final answer
    x = 70,822.74

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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.