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Finding the Fourth Proportional to 174,404.70, 261,607.05 and 85,715.10

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Solution

The fourth proportional to 174,404.70, 261,607.05 and 85,715.10 is: 128,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,404.70 : 261,607.05 = 85,715.10 : x
  2. Step 2: Convert to fraction form
    174,404.70/261,607.05 = 85,715.10/x
  3. Step 3: Cross multiply
    174,404.70x = 261,607.05 × 85,715.10
  4. Step 4: Simplify right side
    174,404.70x = 22,423,674,451.46
  5. Step 5: Solve for x
    x = 22,423,674,451.46/174,404.70
  6. Step 6: Final answer
    x = 128,572.65

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Similar ratio
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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.