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Finding the Fourth Proportional to 615,334.20, 922,957.50 and 166,080.66

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Solution

The fourth proportional to 615,334.20, 922,957.50 and 166,080.66 is: 249,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,334.20 : 922,957.50 = 166,080.66 : x
  2. Step 2: Convert to fraction form
    615,334.20/922,957.50 = 166,080.66/x
  3. Step 3: Cross multiply
    615,334.20x = 922,957.50 × 166,080.66
  4. Step 4: Simplify right side
    615,334.20x = 153,285,390,751.95
  5. Step 5: Solve for x
    x = 153,285,390,751.95/615,334.20
  6. Step 6: Final answer
    x = 249,109.17

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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.