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Finding the Fourth Proportional to 144,458.64, 216,711.05 and 49,678.92

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Solution

The fourth proportional to 144,458.64, 216,711.05 and 49,678.92 is: 74,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,458.64 : 216,711.05 = 49,678.92 : x
  2. Step 2: Convert to fraction form
    144,458.64/216,711.05 = 49,678.92/x
  3. Step 3: Cross multiply
    144,458.64x = 216,711.05 × 49,678.92
  4. Step 4: Simplify right side
    144,458.64x = 10,765,970,667.67
  5. Step 5: Solve for x
    x = 10,765,970,667.67/144,458.64
  6. Step 6: Final answer
    x = 74,526.32

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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.