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Finding the Fourth Proportional to 99,188.76, 148,783.14 and 25,316.76

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Solution

The fourth proportional to 99,188.76, 148,783.14 and 25,316.76 is: 37,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,188.76 : 148,783.14 = 25,316.76 : x
  2. Step 2: Convert to fraction form
    99,188.76/148,783.14 = 25,316.76/x
  3. Step 3: Cross multiply
    99,188.76x = 148,783.14 × 25,316.76
  4. Step 4: Simplify right side
    99,188.76x = 3,766,707,047.43
  5. Step 5: Solve for x
    x = 3,766,707,047.43/99,188.76
  6. Step 6: Final answer
    x = 37,975.14

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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.