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Finding the Fourth Proportional to 93,713.76, 129,280.32 and 57,890.88

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Solution

The fourth proportional to 93,713.76, 129,280.32 and 57,890.88 is: 79,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,713.76 : 129,280.32 = 57,890.88 : x
  2. Step 2: Convert to fraction form
    93,713.76/129,280.32 = 57,890.88/x
  3. Step 3: Cross multiply
    93,713.76x = 129,280.32 × 57,890.88
  4. Step 4: Simplify right side
    93,713.76x = 7,484,151,491.48
  5. Step 5: Solve for x
    x = 7,484,151,491.48/93,713.76
  6. Step 6: Final answer
    x = 79,861.82

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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.