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Finding the Fourth Proportional to 417,849.32, 626,762.02 and 118,329.20

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Solution

The fourth proportional to 417,849.32, 626,762.02 and 118,329.20 is: 177,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,849.32 : 626,762.02 = 118,329.20 : x
  2. Step 2: Convert to fraction form
    417,849.32/626,762.02 = 118,329.20/x
  3. Step 3: Cross multiply
    417,849.32x = 626,762.02 × 118,329.20
  4. Step 4: Simplify right side
    417,849.32x = 74,164,245,283.17
  5. Step 5: Solve for x
    x = 74,164,245,283.17/417,849.32
  6. Step 6: Final answer
    x = 177,490.41

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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.