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Finding the Fourth Proportional to 125,223.96, 172,808.66 and 67,864.92

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Solution

The fourth proportional to 125,223.96, 172,808.66 and 67,864.92 is: 93,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,223.96 : 172,808.66 = 67,864.92 : x
  2. Step 2: Convert to fraction form
    125,223.96/172,808.66 = 67,864.92/x
  3. Step 3: Cross multiply
    125,223.96x = 172,808.66 × 67,864.92
  4. Step 4: Simplify right side
    125,223.96x = 11,727,645,886.21
  5. Step 5: Solve for x
    x = 11,727,645,886.21/125,223.96
  6. Step 6: Final answer
    x = 93,653.37

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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.