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Finding the Fourth Proportional to 107,529.76, 148,363.95 and 65,080.09

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Solution

The fourth proportional to 107,529.76, 148,363.95 and 65,080.09 is: 89,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,529.76 : 148,363.95 = 65,080.09 : x
  2. Step 2: Convert to fraction form
    107,529.76/148,363.95 = 65,080.09/x
  3. Step 3: Cross multiply
    107,529.76x = 148,363.95 × 65,080.09
  4. Step 4: Simplify right side
    107,529.76x = 9,655,539,218.76
  5. Step 5: Solve for x
    x = 9,655,539,218.76/107,529.76
  6. Step 6: Final answer
    x = 89,794.11

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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.