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Finding the Fourth Proportional to 145,973.52, 218,993.04 and 46,139.52

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Solution

The fourth proportional to 145,973.52, 218,993.04 and 46,139.52 is: 69,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,973.52 : 218,993.04 = 46,139.52 : x
  2. Step 2: Convert to fraction form
    145,973.52/218,993.04 = 46,139.52/x
  3. Step 3: Cross multiply
    145,973.52x = 218,993.04 × 46,139.52
  4. Step 4: Simplify right side
    145,973.52x = 10,104,233,748.94
  5. Step 5: Solve for x
    x = 10,104,233,748.94/145,973.52
  6. Step 6: Final answer
    x = 69,219.63

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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.