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Finding the Fourth Proportional to 177,875.92, 266,875.32 and 67,130.32

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Solution

The fourth proportional to 177,875.92, 266,875.32 and 67,130.32 is: 100,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,875.92 : 266,875.32 = 67,130.32 : x
  2. Step 2: Convert to fraction form
    177,875.92/266,875.32 = 67,130.32/x
  3. Step 3: Cross multiply
    177,875.92x = 266,875.32 × 67,130.32
  4. Step 4: Simplify right side
    177,875.92x = 17,915,425,631.70
  5. Step 5: Solve for x
    x = 17,915,425,631.70/177,875.92
  6. Step 6: Final answer
    x = 100,718.67

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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.