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Finding the Fourth Proportional to 222,683.76, 307,299.81 and 125,886.11

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Solution

The fourth proportional to 222,683.76, 307,299.81 and 125,886.11 is: 173,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,683.76 : 307,299.81 = 125,886.11 : x
  2. Step 2: Convert to fraction form
    222,683.76/307,299.81 = 125,886.11/x
  3. Step 3: Cross multiply
    222,683.76x = 307,299.81 × 125,886.11
  4. Step 4: Simplify right side
    222,683.76x = 38,684,778,603.89
  5. Step 5: Solve for x
    x = 38,684,778,603.89/222,683.76
  6. Step 6: Final answer
    x = 173,720.70

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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.