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Finding the Fourth Proportional to 88,709.10, 133,063.65 and 83,460.30

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Solution

The fourth proportional to 88,709.10, 133,063.65 and 83,460.30 is: 125,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709.10 : 133,063.65 = 83,460.30 : x
  2. Step 2: Convert to fraction form
    88,709.10/133,063.65 = 83,460.30/x
  3. Step 3: Cross multiply
    88,709.10x = 133,063.65 × 83,460.30
  4. Step 4: Simplify right side
    88,709.10x = 11,105,532,148.10
  5. Step 5: Solve for x
    x = 11,105,532,148.10/88,709.10
  6. Step 6: Final answer
    x = 125,190.45

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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.