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Finding the Fourth Proportional to 125,469.04, 173,228.34 and 77,773

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Solution

The fourth proportional to 125,469.04, 173,228.34 and 77,773 is: 107,376.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,469.04 : 173,228.34 = 77,773 : x
  2. Step 2: Convert to fraction form
    125,469.04/173,228.34 = 77,773/x
  3. Step 3: Cross multiply
    125,469.04x = 173,228.34 × 77,773
  4. Step 4: Simplify right side
    125,469.04x = 13,472,487,686.82
  5. Step 5: Solve for x
    x = 13,472,487,686.82/125,469.04
  6. Step 6: Final answer
    x = 107,376.99

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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.