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Finding the Fourth Proportional to 93,769.40, 129,401.80 and 51,328.84

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Solution

The fourth proportional to 93,769.40, 129,401.80 and 51,328.84 is: 70,833.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,769.40 : 129,401.80 = 51,328.84 : x
  2. Step 2: Convert to fraction form
    93,769.40/129,401.80 = 51,328.84/x
  3. Step 3: Cross multiply
    93,769.40x = 129,401.80 × 51,328.84
  4. Step 4: Simplify right side
    93,769.40x = 6,642,044,287.91
  5. Step 5: Solve for x
    x = 6,642,044,287.91/93,769.40
  6. Step 6: Final answer
    x = 70,833.81

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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.