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Finding the Fourth Proportional to 125,493.95, 173,176.91 and 77,746.27

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Solution

The fourth proportional to 125,493.95, 173,176.91 and 77,746.27 is: 107,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,493.95 : 173,176.91 = 77,746.27 : x
  2. Step 2: Convert to fraction form
    125,493.95/173,176.91 = 77,746.27/x
  3. Step 3: Cross multiply
    125,493.95x = 173,176.91 × 77,746.27
  4. Step 4: Simplify right side
    125,493.95x = 13,463,858,802.63
  5. Step 5: Solve for x
    x = 13,463,858,802.63/125,493.95
  6. Step 6: Final answer
    x = 107,286.92

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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.