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Finding the Fourth Proportional to 147,653.20, 221,479.80 and 58,920.40

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Solution

The fourth proportional to 147,653.20, 221,479.80 and 58,920.40 is: 88,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,653.20 : 221,479.80 = 58,920.40 : x
  2. Step 2: Convert to fraction form
    147,653.20/221,479.80 = 58,920.40/x
  3. Step 3: Cross multiply
    147,653.20x = 221,479.80 × 58,920.40
  4. Step 4: Simplify right side
    147,653.20x = 13,049,678,407.92
  5. Step 5: Solve for x
    x = 13,049,678,407.92/147,653.20
  6. Step 6: Final answer
    x = 88,380.60

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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.