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Finding the Fourth Proportional to 174,915.70, 262,373.55 and 139,923.70

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Solution

The fourth proportional to 174,915.70, 262,373.55 and 139,923.70 is: 209,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,915.70 : 262,373.55 = 139,923.70 : x
  2. Step 2: Convert to fraction form
    174,915.70/262,373.55 = 139,923.70/x
  3. Step 3: Cross multiply
    174,915.70x = 262,373.55 × 139,923.70
  4. Step 4: Simplify right side
    174,915.70x = 36,712,277,898.14
  5. Step 5: Solve for x
    x = 36,712,277,898.14/174,915.70
  6. Step 6: Final answer
    x = 209,885.55

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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.