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Finding the Fourth Proportional to 219,024.80, 328,018.80 and 148,522.40

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Solution

The fourth proportional to 219,024.80, 328,018.80 and 148,522.40 is: 222,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,024.80 : 328,018.80 = 148,522.40 : x
  2. Step 2: Convert to fraction form
    219,024.80/328,018.80 = 148,522.40/x
  3. Step 3: Cross multiply
    219,024.80x = 328,018.80 × 148,522.40
  4. Step 4: Simplify right side
    219,024.80x = 48,718,139,421.12
  5. Step 5: Solve for x
    x = 48,718,139,421.12/219,024.80
  6. Step 6: Final answer
    x = 222,432.07

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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.