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Finding the Fourth Proportional to 147,486.83, 221,230.31 and 36,678.83

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Solution

The fourth proportional to 147,486.83, 221,230.31 and 36,678.83 is: 55,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,486.83 : 221,230.31 = 36,678.83 : x
  2. Step 2: Convert to fraction form
    147,486.83/221,230.31 = 36,678.83/x
  3. Step 3: Cross multiply
    147,486.83x = 221,230.31 × 36,678.83
  4. Step 4: Simplify right side
    147,486.83x = 8,114,467,641.79
  5. Step 5: Solve for x
    x = 8,114,467,641.79/147,486.83
  6. Step 6: Final answer
    x = 55,018.25

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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.