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Finding the Fourth Proportional to 354,728.40, 532,097.28 and 118,071.12

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Solution

The fourth proportional to 354,728.40, 532,097.28 and 118,071.12 is: 177,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,728.40 : 532,097.28 = 118,071.12 : x
  2. Step 2: Convert to fraction form
    354,728.40/532,097.28 = 118,071.12/x
  3. Step 3: Cross multiply
    354,728.40x = 532,097.28 × 118,071.12
  4. Step 4: Simplify right side
    354,728.40x = 62,825,321,798.55
  5. Step 5: Solve for x
    x = 62,825,321,798.55/354,728.40
  6. Step 6: Final answer
    x = 177,108.24

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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.