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Finding the Fourth Proportional to 99,063.45, 148,400.78 and 59,503.77

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Solution

The fourth proportional to 99,063.45, 148,400.78 and 59,503.77 is: 89,138.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,063.45 : 148,400.78 = 59,503.77 : x
  2. Step 2: Convert to fraction form
    99,063.45/148,400.78 = 59,503.77/x
  3. Step 3: Cross multiply
    99,063.45x = 148,400.78 × 59,503.77
  4. Step 4: Simplify right side
    99,063.45x = 8,830,405,583.42
  5. Step 5: Solve for x
    x = 8,830,405,583.42/99,063.45
  6. Step 6: Final answer
    x = 89,138.89

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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.