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Finding the Fourth Proportional to 306,711.60, 460,081.80 and 96,356.40

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Solution

The fourth proportional to 306,711.60, 460,081.80 and 96,356.40 is: 144,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,711.60 : 460,081.80 = 96,356.40 : x
  2. Step 2: Convert to fraction form
    306,711.60/460,081.80 = 96,356.40/x
  3. Step 3: Cross multiply
    306,711.60x = 460,081.80 × 96,356.40
  4. Step 4: Simplify right side
    306,711.60x = 44,331,825,953.52
  5. Step 5: Solve for x
    x = 44,331,825,953.52/306,711.60
  6. Step 6: Final answer
    x = 144,539.12

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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.