Home / 278,036.04-417,054.54-67,674.12

Finding the Fourth Proportional to 278,036.04, 417,054.54 and 67,674.12

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Solution

The fourth proportional to 278,036.04, 417,054.54 and 67,674.12 is: 101,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,036.04 : 417,054.54 = 67,674.12 : x
  2. Step 2: Convert to fraction form
    278,036.04/417,054.54 = 67,674.12/x
  3. Step 3: Cross multiply
    278,036.04x = 417,054.54 × 67,674.12
  4. Step 4: Simplify right side
    278,036.04x = 28,223,798,986.50
  5. Step 5: Solve for x
    x = 28,223,798,986.50/278,036.04
  6. Step 6: Final answer
    x = 101,511.30

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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.