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Finding the Fourth Proportional to 235,038.54, 324,358.65 and 139,545.48

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Solution

The fourth proportional to 235,038.54, 324,358.65 and 139,545.48 is: 192,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,038.54 : 324,358.65 = 139,545.48 : x
  2. Step 2: Convert to fraction form
    235,038.54/324,358.65 = 139,545.48/x
  3. Step 3: Cross multiply
    235,038.54x = 324,358.65 × 139,545.48
  4. Step 4: Simplify right side
    235,038.54x = 45,262,783,506.40
  5. Step 5: Solve for x
    x = 45,262,783,506.40/235,038.54
  6. Step 6: Final answer
    x = 192,576.01

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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.