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Finding the Fourth Proportional to 202,420.90, 303,631.35 and 163,054.90

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Solution

The fourth proportional to 202,420.90, 303,631.35 and 163,054.90 is: 244,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,420.90 : 303,631.35 = 163,054.90 : x
  2. Step 2: Convert to fraction form
    202,420.90/303,631.35 = 163,054.90/x
  3. Step 3: Cross multiply
    202,420.90x = 303,631.35 × 163,054.90
  4. Step 4: Simplify right side
    202,420.90x = 49,508,579,411.12
  5. Step 5: Solve for x
    x = 49,508,579,411.12/202,420.90
  6. Step 6: Final answer
    x = 244,582.35

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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.