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Finding the Fourth Proportional to 145,668.76, 218,504.58 and 45,826.72

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Solution

The fourth proportional to 145,668.76, 218,504.58 and 45,826.72 is: 68,740.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,668.76 : 218,504.58 = 45,826.72 : x
  2. Step 2: Convert to fraction form
    145,668.76/218,504.58 = 45,826.72/x
  3. Step 3: Cross multiply
    145,668.76x = 218,504.58 × 45,826.72
  4. Step 4: Simplify right side
    145,668.76x = 10,013,348,206.38
  5. Step 5: Solve for x
    x = 10,013,348,206.38/145,668.76
  6. Step 6: Final answer
    x = 68,740.53

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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.