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Finding the Fourth Proportional to 93,004.34, 128,118.21 and 67,435.57

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Solution

The fourth proportional to 93,004.34, 128,118.21 and 67,435.57 is: 92,895.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,004.34 : 128,118.21 = 67,435.57 : x
  2. Step 2: Convert to fraction form
    93,004.34/128,118.21 = 67,435.57/x
  3. Step 3: Cross multiply
    93,004.34x = 128,118.21 × 67,435.57
  4. Step 4: Simplify right side
    93,004.34x = 8,639,724,425.99
  5. Step 5: Solve for x
    x = 8,639,724,425.99/93,004.34
  6. Step 6: Final answer
    x = 92,895.93

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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.