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Finding the Fourth Proportional to 99,856.71, 137,798.77 and 59,549.62

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Solution

The fourth proportional to 99,856.71, 137,798.77 and 59,549.62 is: 82,176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856.71 : 137,798.77 = 59,549.62 : x
  2. Step 2: Convert to fraction form
    99,856.71/137,798.77 = 59,549.62/x
  3. Step 3: Cross multiply
    99,856.71x = 137,798.77 × 59,549.62
  4. Step 4: Simplify right side
    99,856.71x = 8,205,864,072.85
  5. Step 5: Solve for x
    x = 8,205,864,072.85/99,856.71
  6. Step 6: Final answer
    x = 82,176.39

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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.