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Finding the Fourth Proportional to 548,390.51, 822,280.12 and 169,203.59

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Solution

The fourth proportional to 548,390.51, 822,280.12 and 169,203.59 is: 253,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,390.51 : 822,280.12 = 169,203.59 : x
  2. Step 2: Convert to fraction form
    548,390.51/822,280.12 = 169,203.59/x
  3. Step 3: Cross multiply
    548,390.51x = 822,280.12 × 169,203.59
  4. Step 4: Simplify right side
    548,390.51x = 139,132,748,289.63
  5. Step 5: Solve for x
    x = 139,132,748,289.63/548,390.51
  6. Step 6: Final answer
    x = 253,711.08

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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.