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Finding the Fourth Proportional to 99,503.96, 137,303.88 and 59,230.76

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Solution

The fourth proportional to 99,503.96, 137,303.88 and 59,230.76 is: 81,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,503.96 : 137,303.88 = 59,230.76 : x
  2. Step 2: Convert to fraction form
    99,503.96/137,303.88 = 59,230.76/x
  3. Step 3: Cross multiply
    99,503.96x = 137,303.88 × 59,230.76
  4. Step 4: Simplify right side
    99,503.96x = 8,132,613,163.35
  5. Step 5: Solve for x
    x = 8,132,613,163.35/99,503.96
  6. Step 6: Final answer
    x = 81,731.55

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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.