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Finding the Fourth Proportional to 99,080.55, 148,647.65 and 70,653.43

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Solution

The fourth proportional to 99,080.55, 148,647.65 and 70,653.43 is: 105,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,080.55 : 148,647.65 = 70,653.43 : x
  2. Step 2: Convert to fraction form
    99,080.55/148,647.65 = 70,653.43/x
  3. Step 3: Cross multiply
    99,080.55x = 148,647.65 × 70,653.43
  4. Step 4: Simplify right side
    99,080.55x = 10,502,465,727.76
  5. Step 5: Solve for x
    x = 10,502,465,727.76/99,080.55
  6. Step 6: Final answer
    x = 105,999.27

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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.