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Finding the Fourth Proportional to 191,285.20, 286,582.20 and 163,637.20

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Solution

The fourth proportional to 191,285.20, 286,582.20 and 163,637.20 is: 245,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,285.20 : 286,582.20 = 163,637.20 : x
  2. Step 2: Convert to fraction form
    191,285.20/286,582.20 = 163,637.20/x
  3. Step 3: Cross multiply
    191,285.20x = 286,582.20 × 163,637.20
  4. Step 4: Simplify right side
    191,285.20x = 46,895,508,777.84
  5. Step 5: Solve for x
    x = 46,895,508,777.84/191,285.20
  6. Step 6: Final answer
    x = 245,160.15

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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.