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Finding the Fourth Proportional to 99,313.60, 148,751.70 and 88,232.80

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Solution

The fourth proportional to 99,313.60, 148,751.70 and 88,232.80 is: 132,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,313.60 : 148,751.70 = 88,232.80 : x
  2. Step 2: Convert to fraction form
    99,313.60/148,751.70 = 88,232.80/x
  3. Step 3: Cross multiply
    99,313.60x = 148,751.70 × 88,232.80
  4. Step 4: Simplify right side
    99,313.60x = 13,124,778,995.76
  5. Step 5: Solve for x
    x = 13,124,778,995.76/99,313.60
  6. Step 6: Final answer
    x = 132,154.90

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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.