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Finding the Fourth Proportional to 125,007.99, 172,511.48 and 67,647.30

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Solution

The fourth proportional to 125,007.99, 172,511.48 and 67,647.30 is: 93,353.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,007.99 : 172,511.48 = 67,647.30 : x
  2. Step 2: Convert to fraction form
    125,007.99/172,511.48 = 67,647.30/x
  3. Step 3: Cross multiply
    125,007.99x = 172,511.48 × 67,647.30
  4. Step 4: Simplify right side
    125,007.99x = 11,669,935,502.77
  5. Step 5: Solve for x
    x = 11,669,935,502.77/125,007.99
  6. Step 6: Final answer
    x = 93,353.52

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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.