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Finding the Fourth Proportional to 355,059.40, 532,591.80 and 118,401.70

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Solution

The fourth proportional to 355,059.40, 532,591.80 and 118,401.70 is: 177,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,059.40 : 532,591.80 = 118,401.70 : x
  2. Step 2: Convert to fraction form
    355,059.40/532,591.80 = 118,401.70/x
  3. Step 3: Cross multiply
    355,059.40x = 532,591.80 × 118,401.70
  4. Step 4: Simplify right side
    355,059.40x = 63,059,774,526.06
  5. Step 5: Solve for x
    x = 63,059,774,526.06/355,059.40
  6. Step 6: Final answer
    x = 177,603.45

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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.