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Finding the Fourth Proportional to 124,071.45, 171,213.66 and 67,482.87

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Solution

The fourth proportional to 124,071.45, 171,213.66 and 67,482.87 is: 93,123.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,071.45 : 171,213.66 = 67,482.87 : x
  2. Step 2: Convert to fraction form
    124,071.45/171,213.66 = 67,482.87/x
  3. Step 3: Cross multiply
    124,071.45x = 171,213.66 × 67,482.87
  4. Step 4: Simplify right side
    124,071.45x = 11,553,989,160.00
  5. Step 5: Solve for x
    x = 11,553,989,160.00/124,071.45
  6. Step 6: Final answer
    x = 93,123.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.