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Finding the Fourth Proportional to 335,070.95, 502,643.17 and 145,400.94

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Solution

The fourth proportional to 335,070.95, 502,643.17 and 145,400.94 is: 218,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,070.95 : 502,643.17 = 145,400.94 : x
  2. Step 2: Convert to fraction form
    335,070.95/502,643.17 = 145,400.94/x
  3. Step 3: Cross multiply
    335,070.95x = 502,643.17 × 145,400.94
  4. Step 4: Simplify right side
    335,070.95x = 73,084,789,584.33
  5. Step 5: Solve for x
    x = 73,084,789,584.33/335,070.95
  6. Step 6: Final answer
    x = 218,117.36

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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.