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Finding the Fourth Proportional to 125,225.96, 172,811.42 and 67,866.92

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Solution

The fourth proportional to 125,225.96, 172,811.42 and 67,866.92 is: 93,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,225.96 : 172,811.42 = 67,866.92 : x
  2. Step 2: Convert to fraction form
    125,225.96/172,811.42 = 67,866.92/x
  3. Step 3: Cross multiply
    125,225.96x = 172,811.42 × 67,866.92
  4. Step 4: Simplify right side
    125,225.96x = 11,728,178,816.23
  5. Step 5: Solve for x
    x = 11,728,178,816.23/125,225.96
  6. Step 6: Final answer
    x = 93,656.13

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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.