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Finding the Fourth Proportional to 215,892.60, 323,547.30 and 144,612.60

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Solution

The fourth proportional to 215,892.60, 323,547.30 and 144,612.60 is: 216,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,892.60 : 323,547.30 = 144,612.60 : x
  2. Step 2: Convert to fraction form
    215,892.60/323,547.30 = 144,612.60/x
  3. Step 3: Cross multiply
    215,892.60x = 323,547.30 × 144,612.60
  4. Step 4: Simplify right side
    215,892.60x = 46,789,016,275.98
  5. Step 5: Solve for x
    x = 46,789,016,275.98/215,892.60
  6. Step 6: Final answer
    x = 216,723.58

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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.