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Finding the Fourth Proportional to 218,152.16, 326,894.20 and 146,810.32

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Solution

The fourth proportional to 218,152.16, 326,894.20 and 146,810.32 is: 219,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,152.16 : 326,894.20 = 146,810.32 : x
  2. Step 2: Convert to fraction form
    218,152.16/326,894.20 = 146,810.32/x
  3. Step 3: Cross multiply
    218,152.16x = 326,894.20 × 146,810.32
  4. Step 4: Simplify right side
    218,152.16x = 47,991,442,108.14
  5. Step 5: Solve for x
    x = 47,991,442,108.14/218,152.16
  6. Step 6: Final answer
    x = 219,990.68

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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.