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Finding the Fourth Proportional to 354,761.60, 532,293.60 and 186,411.20

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Solution

The fourth proportional to 354,761.60, 532,293.60 and 186,411.20 is: 279,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,761.60 : 532,293.60 = 186,411.20 : x
  2. Step 2: Convert to fraction form
    354,761.60/532,293.60 = 186,411.20/x
  3. Step 3: Cross multiply
    354,761.60x = 532,293.60 × 186,411.20
  4. Step 4: Simplify right side
    354,761.60x = 99,225,488,728.32
  5. Step 5: Solve for x
    x = 99,225,488,728.32/354,761.60
  6. Step 6: Final answer
    x = 279,696.25

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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.