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Finding the Fourth Proportional to 401,075.61, 601,689.27 and 161,208.18

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Solution

The fourth proportional to 401,075.61, 601,689.27 and 161,208.18 is: 241,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,075.61 : 601,689.27 = 161,208.18 : x
  2. Step 2: Convert to fraction form
    401,075.61/601,689.27 = 161,208.18/x
  3. Step 3: Cross multiply
    401,075.61x = 601,689.27 × 161,208.18
  4. Step 4: Simplify right side
    401,075.61x = 96,997,232,746.76
  5. Step 5: Solve for x
    x = 96,997,232,746.76/401,075.61
  6. Step 6: Final answer
    x = 241,842.76

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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.