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Finding the Fourth Proportional to 125,695.82, 173,455.80 and 69,106.76

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Solution

The fourth proportional to 125,695.82, 173,455.80 and 69,106.76 is: 95,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,695.82 : 173,455.80 = 69,106.76 : x
  2. Step 2: Convert to fraction form
    125,695.82/173,455.80 = 69,106.76/x
  3. Step 3: Cross multiply
    125,695.82x = 173,455.80 × 69,106.76
  4. Step 4: Simplify right side
    125,695.82x = 11,986,968,341.21
  5. Step 5: Solve for x
    x = 11,986,968,341.21/125,695.82
  6. Step 6: Final answer
    x = 95,364.89

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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.