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Finding the Fourth Proportional to 128,035.56, 176,755.56 and 93,541.62

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Solution

The fourth proportional to 128,035.56, 176,755.56 and 93,541.62 is: 129,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,035.56 : 176,755.56 = 93,541.62 : x
  2. Step 2: Convert to fraction form
    128,035.56/176,755.56 = 93,541.62/x
  3. Step 3: Cross multiply
    128,035.56x = 176,755.56 × 93,541.62
  4. Step 4: Simplify right side
    128,035.56x = 16,534,001,426.41
  5. Step 5: Solve for x
    x = 16,534,001,426.41/128,035.56
  6. Step 6: Final answer
    x = 129,136.01

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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.