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Finding the Fourth Proportional to 236,361.67, 354,545.59 and 78,590.12

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Solution

The fourth proportional to 236,361.67, 354,545.59 and 78,590.12 is: 117,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,361.67 : 354,545.59 = 78,590.12 : x
  2. Step 2: Convert to fraction form
    236,361.67/354,545.59 = 78,590.12/x
  3. Step 3: Cross multiply
    236,361.67x = 354,545.59 × 78,590.12
  4. Step 4: Simplify right side
    236,361.67x = 27,863,778,297.89
  5. Step 5: Solve for x
    x = 27,863,778,297.89/236,361.67
  6. Step 6: Final answer
    x = 117,886.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.