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Finding the Fourth Proportional to 417,747.70, 626,541.63 and 118,155.97

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Solution

The fourth proportional to 417,747.70, 626,541.63 and 118,155.97 is: 177,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,747.70 : 626,541.63 = 118,155.97 : x
  2. Step 2: Convert to fraction form
    417,747.70/626,541.63 = 118,155.97/x
  3. Step 3: Cross multiply
    417,747.70x = 626,541.63 × 118,155.97
  4. Step 4: Simplify right side
    417,747.70x = 74,029,634,038.03
  5. Step 5: Solve for x
    x = 74,029,634,038.03/417,747.70
  6. Step 6: Final answer
    x = 177,211.35

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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.