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Finding the Fourth Proportional to 96,539.70, 144,809.55 and 84,875.70

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Solution

The fourth proportional to 96,539.70, 144,809.55 and 84,875.70 is: 127,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,539.70 : 144,809.55 = 84,875.70 : x
  2. Step 2: Convert to fraction form
    96,539.70/144,809.55 = 84,875.70/x
  3. Step 3: Cross multiply
    96,539.70x = 144,809.55 × 84,875.70
  4. Step 4: Simplify right side
    96,539.70x = 12,290,811,922.94
  5. Step 5: Solve for x
    x = 12,290,811,922.94/96,539.70
  6. Step 6: Final answer
    x = 127,313.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.