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Finding the Fourth Proportional to 125,397.86, 173,046.74 and 70,949.45

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Solution

The fourth proportional to 125,397.86, 173,046.74 and 70,949.45 is: 97,908.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,397.86 : 173,046.74 = 70,949.45 : x
  2. Step 2: Convert to fraction form
    125,397.86/173,046.74 = 70,949.45/x
  3. Step 3: Cross multiply
    125,397.86x = 173,046.74 × 70,949.45
  4. Step 4: Simplify right side
    125,397.86x = 12,277,571,105.16
  5. Step 5: Solve for x
    x = 12,277,571,105.16/125,397.86
  6. Step 6: Final answer
    x = 97,908.94

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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.